Gimana sih, cara menyelesaikan persamaan kuadrat dalam matematika? Yuk, simak tiga cara mudah beserta contohnya berikut ini!
—
Dalam mempelajari ilmu matematika, kamu bakalan banyak bertemu, berkenalan, bahkan berteman sama yang namanya persamaan.
Jenis-jenis persamaan dalam matematika pun ada banyak, lho! Ada persamaan linier, persamaan kuadrat, persamaan eksponen, persamaan logaritma, persamaan trigonometri, dan lain sebagainya. Duh, denger namanya aja, udah bikin pusing duluan, ya?
Eits, tenang, guys! Belajar matematika itu nggak pusing kok, asalkan kita bisa memahami konsepnya terlebih dahulu sebelum lanjut mempelajari lebih jauh dan mengerjakan latihan soal.
Nah, kali ini, kita akan belajar bersama tentang persamaan kuadrat, nih! Biar kamu paham konsepnya, kita mulai dari pengertian persamaan kuadrat dulu, ya.
Apa itu Persamaan Kuadrat?
Persamaan kuadrat adalah persamaan polinomial (suku banyak) variabel 1 yang memiliki pangkat tertinggi dua. Ingat, ya, pangkat tertingginya dua! Jadi, kalau kamu nyariin pangkat tiga di persamaan kuadrat, ya kagak bakalan ketemu, yak.
Nah, bentuk umum persamaan kuadrat bisa dituliskan seperti berikut:
ax2 + bx + c = 0
Dengan a, b, c ∈ R dan a ≠ 0
Keterangan:
x = variabel
a = koefisien dari x2
b = koefisien dari x
c = konstanta
Dalam mempelajari persamaan kuadrat, tentunya kamu nggak akan terlepas dari yang namanya menyelesaikan persamaan kuadrat. Hmm, menyelesaikan tuh, maksudnya gimana sih? Emangnya persamaan kuadrat punya masalah, kok harus diselesaiin segala?
Tentu punya, dong! Masalah yang dimiliki persamaan kuadrat terletak pada nilai x-nya.
Jadi, seperti yang udah kita tau dari bentuk umumnya, persamaan kuadrat itu punya variabel x yang nggak diketahui nilainya berapa. Nah, nilai x inilah yang mau kita cari! Cara mencari nilai x adalah dengan menyelesaikan persamaan kuadrat tersebut.
Terus, cara menyelesaikan persamaan kuadrat kaya gimana, kak?
Ada tiga cara untuk menyelesaikan persamaan kuadrat, yaitu dengan menggunakan faktorisasi, kuadrat sempurna, dan rumus kuadratik atau biasa disebut juga sebagai rumus ABC. Kita bahas satu per satu, ya!
Baca Juga: Cara Menyusun Persamaan Kuadrat dan Contohnya
1. Faktorisasi
Faktorisasi atau pemfaktoran merupakan cara mencari penyelesaian dari persamaan kuadrat, dengan cara mencari nilai yang jika dikalikan, maka akan menghasilkan nilai lain.
Ada tiga bentuk persamaan kuadrat dengan faktorisasi yang berbeda, yakni seperti berikut:
No.
Persamaan Kuadrat
Faktorisasi
1.
x2 + 2xy + y2 = 0
(x + y)2 = 0
2.
x2 − 2xy + y2 = 0
(x − y)2 = 0
3.
x2 − y2 = 0
(x + y)(x − y) = 0
Dengan x = variabel dan y = konstanta
Next, coba kita kerjakan contoh soal di bawah ini, ya!
Contoh Soal Faktorisasi
Selesaikan persamaan kuadrat berikut dengan cara faktorisasi 5x2 + 13x + 6 = 0!
Jawab:
5x2 + 13x + 6 = 0
5x2 + 10x + 3x + 6 = 0
5x(x + 2) + 3(x + 2) = 0
(5x + 3)(x + 2) = 0
5x = −3
x = atau x = −2
Jadi, penyelesaiannya adalah x = atau x = −2.
Lanjuuut, ke pembahasan cara kedua, yaitu kuadrat sempurna.
2. Kuadrat Sempurna
Kuadrat sempurna adalah cara untuk menyelesaikan persamaan kuadrat dengan melengkapkan kuadratnya sehingga menjadi sempurna. Bentuk persamaan kuadrat sempurna merupakan bentuk persamaan yang menghasilkan bilangan rasional.
Penyelesaian persamaan kuadrat dengan kuadrat sempurna menggunakan rumus berikut:
(x + p)2 = x2+ 2px + p2
Dari bentuk tersebut, kamu bisa ubah menjadi bentuk persamaan dalam (x + p)2 = q
Penyelesaian:
(x + p)2 = q
x + p = ± √q
x = −p ± √q
Biar makin paham, coba kerjakan contoh soal di bawah ini, ya!
Contoh Soal Kuadrat Sempurna
Lengkapi bentuk kuadrat sempurna berikut ini x2 + 6x + 5 = 0!
Jawab:
x2 + 6x + 5 = 0
Ubah menjadi x2 + 6x = −5
Tambahkan satu angka di ruas kiri dan kanan agar menjadi kuadrat sempurna. Penambahan angka ini diambil dari separuh angka koefisien dari x atau separuhnya 6 yang dikuadratkan, yakni 32 = 9. Tambahkan angka 9 di ruas kiri dan kanan, sehingga persamaannya menjadi:
x2 + 6x + 9 = −5 + 9
x2 + 6x + 9 = 4
(x + 3)2 = 4
(x + 3) = √4
x + 3 = ± 2
a. Untuk x + 3 = 2
x = 2 − 3
x = −1
b. Untuk x + 3 = −2
x = −2 − 3
x = −5
Jadi, penyelesaiannya adalah x = −1 atau x = −5.
Baca Juga: Ketahui Sifat-Sifat Bentuk Akar & Cara Merasionalkannya
Lanjuuut, ke cara terakhir, yakni rumus kuadratik!
3. Rumus Kuadratik
Selain menggunakan faktorisasi dan melengkapi kuadrat sempurna, persamaan kuadrat juga bisa diselesaikan dengan menggunakan rumus kuadratik atau biasa dikenal dengan rumus ABC. Rumus kuadratik atau rumus ABC bisa kamu lihat pada gambar berikut.
Next, coba kamu kerjakan contoh soal berikut!
Contoh Soal Rumus Kuadratik
Selesaikan persamaan kuadrat x2 + 4x − 12 = 0 menggunakan rumus kuadratik (rumus ABC)!
Jawab:
x2 + 4x − 12 = 0
a = 1, b = 4, c = −12
Jadi, penyelesaiannya adalah x = 2 atau x = −6.
—
Nah, itu dia pembahasan tentang cara menyelesaikan persamaan kuadrat. Sudah paham, kan? Kalau kamu masih bingung dan masih ada pertanyaan terkait materi ini, langsung saja tanyakan melalui Roboguru!
Referensi:
Wagiyo, A., Mulyono, S., dan Susanto. (2008). Pegangan Belajar Matematika. Jakarta: Kemendikbud.
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<h1 class="content-title">
3 Cara Mudah Menyelesaikan Persamaan Kuadrat | Matematika Kelas 9 </h1>
<div class="content-meta">
<p class="content-author"><a href="https://www.ruangguru.com/blog/author/kenya-swawikanti" class="">Kenya Swawikanti</a> </p>
<p class="content-info"><span>February 4, 2025 • </span> <span>4 minutes read</span></p>
<br />
</div>
<div class="content-body">
<p style="text-align: justify;"><img decoding="async" class="aligncenter" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/Cara%20Menyelesaikan%20Persamaan%20Kuadrat.png" alt="Cara Menyelesaikan Persamaan Kuadrat" width="820" /></p>
<blockquote>
<p style="text-align: center;"><em>Gimana sih, cara menyelesaikan persamaan kuadrat dalam matematika? Yuk, simak tiga cara mudah beserta contohnya berikut ini!</em></p>
<p style="text-align: center;">—</p>
</blockquote>
<p> </p>
<p style="text-align: justify;">Dalam mempelajari ilmu matematika, kamu bakalan banyak bertemu, berkenalan, bahkan berteman sama yang namanya persamaan.</p>
<p style="text-align: justify;">Jenis-jenis persamaan dalam matematika pun ada banyak, lho! Ada persamaan linier, persamaan kuadrat, persamaan <strong><a href="/blog/bilangan-berpangkat-pengertian-dan-sifatnya" rel="noopener">eksponen</a></strong>, persamaan logaritma, persamaan trigonometri, dan lain sebagainya. Duh, denger namanya aja, udah bikin pusing duluan, ya?</p>
<p style="text-align: justify;">Eits, tenang, guys! Belajar matematika itu nggak pusing kok, asalkan kita bisa memahami konsepnya terlebih dahulu sebelum lanjut mempelajari lebih jauh dan mengerjakan latihan soal.</p>
<p style="text-align: justify;">Nah, kali ini, kita akan belajar bersama tentang persamaan kuadrat, nih! Biar kamu paham konsepnya, kita mulai dari pengertian persamaan kuadrat dulu, ya.</p>
<p> </p>
<h2 style="text-align: justify;"><span style="font-size: 18pt;">Apa itu Persamaan Kuadrat?</span></h2>
<p style="text-align: justify;">Persamaan kuadrat adalah <strong>persamaan <a href="/blog/konsep-dan-nilai-suku-banyak" rel="noopener">polinomial</a> (suku banyak) variabel 1 yang memiliki pangkat tertinggi dua</strong>. Ingat, ya, pangkat tertingginya dua! Jadi, kalau kamu nyariin pangkat tiga di persamaan kuadrat, ya kagak bakalan ketemu, yak.</p>
<p style="text-align: justify;">Nah, bentuk umum persamaan kuadrat bisa dituliskan seperti berikut:</p>
<blockquote>
<p style="text-align: center;"><strong><span style="font-size: 14pt;">ax<sup>2</sup> + bx + c = 0</span></strong></p>
</blockquote>
<p> </p>
<p style="text-align: justify;">Dengan a, b, c ∈ R dan a ≠ 0</p>
<p style="text-align: justify;"><strong>Keterangan:</strong></p>
<p style="text-align: justify;">x = variabel</p>
<p style="text-align: justify;">a = koefisien dari x<sup>2</sup></p>
<p style="text-align: justify;">b = koefisien dari x</p>
<p style="text-align: justify;">c = konstanta</p>
<p> </p>
<p style="text-align: justify;">Dalam mempelajari persamaan kuadrat, tentunya kamu nggak akan terlepas dari yang namanya menyelesaikan persamaan kuadrat. Hmm, menyelesaikan tuh, maksudnya gimana sih? Emangnya persamaan kuadrat punya masalah, kok harus diselesaiin segala?</p>
<p style="text-align: justify;">Tentu punya, dong! Masalah yang dimiliki persamaan kuadrat terletak pada nilai x-nya.</p>
<p style="text-align: justify;">Jadi, seperti yang udah kita tau dari bentuk umumnya, persamaan kuadrat itu punya variabel x yang nggak diketahui nilainya berapa. Nah, nilai x inilah yang mau kita cari! Cara mencari nilai x adalah dengan menyelesaikan persamaan kuadrat tersebut.</p>
<p style="text-align: justify;">Terus, cara menyelesaikan persamaan kuadrat kaya gimana, kak?</p>
<p> </p>
<h2 style="text-align: justify;"><span style="font-size: 18pt;">Cara Menyelesaikan Persamaan Kuadrat</span></h2>
<p style="text-align: justify;">Ada tiga cara untuk menyelesaikan persamaan kuadrat, yaitu dengan menggunakan <strong>faktorisasi, kuadrat sempurna, dan rumus kuadratik</strong> atau biasa disebut juga sebagai rumus ABC. Kita bahas satu per satu, ya!</p>
<p style="text-align: justify;"><strong>Baca Juga: <a href="/blog/menyusun-persamaan-kuadrat" rel="noopener">Cara Menyusun Persamaan Kuadrat dan Contohnya</a></strong></p>
<p> </p>
<h3 style="text-align: justify;"><span style="font-size: 14pt;">1. Faktorisasi</span></h3>
<p style="text-align: justify;">Faktorisasi atau pemfaktoran merupakan cara mencari penyelesaian dari persamaan kuadrat, dengan cara <strong>mencari nilai yang jika dikalikan, maka akan menghasilkan nilai lain</strong>.</p>
<p style="text-align: justify;">Ada tiga bentuk persamaan kuadrat dengan faktorisasi yang berbeda, yakni seperti berikut:</p>
<div style="text-align: justify;" data-hs-responsive-table="true">
<table style="width: 82.9864%; height: 122px;">
<tbody>
<tr style="height: 48px;">
<td style="height: 48px; width: 9.66667%; text-align: center;"><strong>No.</strong></td>
<td style="height: 48px; width: 47.3333%; text-align: center;"><strong>Persamaan Kuadrat</strong></td>
<td style="height: 48px; width: 169.41%; text-align: center;"><strong>Faktorisasi</strong></td>
</tr>
<tr style="height: 24px;">
<td style="height: 24px; width: 9.66667%;">1.</td>
<td style="height: 24px; width: 47.3333%;">x<sup>2</sup> + 2xy + y<sup>2</sup> = 0</td>
<td style="height: 24px; width: 169.41%;">(x + y)<sup>2</sup> = 0</td>
</tr>
<tr style="height: 24px;">
<td style="height: 24px; width: 9.66667%;">2.</td>
<td style="height: 24px; width: 47.3333%;">x<sup>2</sup> − 2xy + y<sup>2</sup> = 0</td>
<td style="height: 24px; width: 169.41%;">(x − y)<sup>2</sup> = 0</td>
</tr>
<tr style="height: 26px;">
<td style="height: 26px; width: 9.66667%;">3.</td>
<td style="height: 26px; width: 47.3333%;">x<sup>2</sup> − y<sup>2</sup> = 0</td>
<td style="height: 26px; width: 169.41%;">(x + y)(x − y) = 0</td>
</tr>
</tbody>
</table>
</div>
<p> </p>
<p style="text-align: justify;">Dengan x = variabel dan y = konstanta</p>
<p style="text-align: justify;">Next, coba kita kerjakan contoh soal di bawah ini, ya!</p>
<p> </p>
<h4 style="text-align: justify;">Contoh Soal Faktorisasi</h4>
<p style="text-align: justify;">Selesaikan persamaan kuadrat berikut dengan cara faktorisasi 5x<sup>2</sup> + 13x + 6 = 0!</p>
<p style="text-align: justify;"><strong>Jawab:</strong></p>
<p style="text-align: justify;">5x<sup>2</sup> + 13x + 6 = 0</p>
<p style="text-align: justify;">5x<sup>2</sup> + 10x + 3x + 6 = 0</p>
<p style="text-align: justify;">5x(x + 2) + 3(x + 2) = 0</p>
<p style="text-align: justify;">(5x + 3)(x + 2) = 0</p>
<p style="text-align: justify;">5x = −3</p>
<p style="text-align: justify;">x = <img decoding="async" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/35-Aug-12-2022-02-15-37-16-AM.png" alt="35-Aug-12-2022-02-15-37-16-AM" width="37" /> atau x = −2</p>
<p style="text-align: justify;">Jadi, penyelesaiannya adalah x = <img decoding="async" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/35-Aug-12-2022-02-15-37-16-AM.png" alt="35-Aug-12-2022-02-15-37-16-AM" width="37" /> atau x = −2.</p>
<p style="text-align: justify;">Lanjuuut, ke pembahasan cara kedua, yaitu kuadrat sempurna.</p>
<p> </p>
<h3 style="text-align: justify;"><span style="font-size: 14pt;">2. Kuadrat Sempurna</span></h3>
<p style="text-align: justify;">Kuadrat sempurna adalah cara untuk menyelesaikan persamaan kuadrat dengan <strong>melengkapkan kuadratnya sehingga menjadi sempurna</strong>. Bentuk persamaan kuadrat sempurna merupakan bentuk persamaan yang menghasilkan bilangan rasional.</p>
<p style="text-align: justify;">Penyelesaian persamaan kuadrat dengan kuadrat sempurna menggunakan rumus berikut:</p>
<blockquote>
<p style="text-align: center;"><strong><span style="font-size: 14pt;">(x + p)<sup>2</sup> = x<sup>2</sup>+ 2px + p<sup>2</sup></span></strong></p>
</blockquote>
<p> </p>
<p style="text-align: justify;">Dari bentuk tersebut, kamu bisa ubah menjadi bentuk persamaan dalam (x + p)<sup>2</sup> = q</p>
<p style="text-align: justify;"><strong>Penyelesaian:</strong></p>
<p style="text-align: justify;">(x + p)<sup>2</sup> = q</p>
<p style="text-align: justify;">x + p = ± √q</p>
<p style="text-align: justify;">x = −p ± √q</p>
<p style="text-align: justify;">Biar makin paham, coba kerjakan contoh soal di bawah ini, ya!</p>
<p> </p>
<h4 style="text-align: justify;">Contoh Soal Kuadrat Sempurna</h4>
<p style="text-align: justify;">Lengkapi bentuk kuadrat sempurna berikut ini x<sup>2</sup> + 6x + 5 = 0!</p>
<p style="text-align: justify;"><strong>Jawab:</strong></p>
<p style="text-align: justify;">x<sup>2</sup> + 6x + 5 = 0</p>
<p style="text-align: justify;">Ubah menjadi x<sup>2</sup> + 6x = −5</p>
<p style="text-align: justify;">Tambahkan satu angka di ruas kiri dan kanan agar menjadi kuadrat sempurna. Penambahan angka ini diambil dari separuh angka koefisien dari x atau separuhnya 6 yang dikuadratkan, yakni 3<sup>2</sup> = 9. Tambahkan angka 9 di ruas kiri dan kanan, sehingga persamaannya menjadi:</p>
<p style="text-align: justify;">x<sup>2</sup> + 6x + 9 = −5 + 9</p>
<p style="text-align: justify;">x<sup>2</sup> + 6x + 9 = 4</p>
<p style="text-align: justify;">(x + 3)<sup>2</sup> = 4</p>
<p style="text-align: justify;">(x + 3) = √4</p>
<p style="text-align: justify;">x + 3 = ± 2</p>
<p> </p>
<p style="text-align: justify;">a. Untuk x + 3 = 2</p>
<p style="text-align: justify;">x = 2 − 3</p>
<p style="text-align: justify;">x = −1</p>
<p> </p>
<p style="text-align: justify;">b. Untuk x + 3 = −2</p>
<p style="text-align: justify;">x = −2 − 3</p>
<p style="text-align: justify;">x = −5</p>
<p style="text-align: justify;">Jadi, penyelesaiannya adalah x = −1 atau x = −5.</p>
<p style="text-align: justify;"><strong>Baca Juga: <a href="/blog/bilangan-bentuk-akar-sifat-sifat-dan-cara-merasionalkannya" rel="noopener">Ketahui Sifat-Sifat Bentuk Akar & Cara Merasionalkannya</a></strong></p>
<p style="text-align: justify;">Lanjuuut, ke cara terakhir, yakni rumus kuadratik!</p>
<p> </p>
<h3 style="text-align: justify;"><span style="font-size: 14pt;">3. Rumus Kuadratik</span></h3>
<p style="text-align: justify;">Selain menggunakan faktorisasi dan melengkapi kuadrat sempurna, persamaan kuadrat juga bisa diselesaikan dengan menggunakan rumus kuadratik atau biasa dikenal dengan rumus ABC. Rumus kuadratik atau rumus ABC bisa kamu lihat pada gambar berikut.</p>
<p style="text-align: justify;"><img decoding="async" class="aligncenter" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/Rumus%20ABC%20Rumus%20Kuadratik.png" alt="Rumus ABC Rumus Kuadratik" width="600" /></p>
<p> </p>
<p style="text-align: justify;">Next, coba kamu kerjakan contoh soal berikut!</p>
<p> </p>
<h4 style="text-align: justify;">Contoh Soal Rumus Kuadratik</h4>
<p style="text-align: justify;">Selesaikan persamaan kuadrat x<sup>2</sup> + 4x − 12 = 0 menggunakan rumus kuadratik (rumus ABC)!</p>
<p style="text-align: justify;"><strong>Jawab:</strong></p>
<p style="text-align: justify;">x<sup>2</sup> + 4x − 12 = 0</p>
<p style="text-align: justify;">a = 1, b = 4, c = −12</p>
<p style="text-align: justify;"><img decoding="async" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/rumus%20abc.png" alt="rumus abc" width="383" /></p>
<p style="text-align: justify;">Jadi, penyelesaiannya adalah x = 2 atau x = −6.</p>
<p style="text-align: center;">—</p>
<p style="text-align: justify;">Nah, itu dia pembahasan tentang cara menyelesaikan persamaan kuadrat. Sudah paham, kan? Kalau kamu masih bingung dan masih ada pertanyaan terkait materi ini, langsung saja tanyakan melalui <strong><a href="https://roboguru.ruangguru.com/" target="_blank" rel="noopener">Roboguru</a></strong>!</p>
<p style="text-align: justify;"><a href="https://www.ruangguru.com/roboguruplus" target="_blank" rel="noopener"><img decoding="async" class="aligncenter" src="https://cdn-web.ruangguru.com/landing-pages/assets/cta/a0a38c01-0a03-4469-8a8f-60dc108e3138.png" alt="IDN CTA Blog roboguru plus Ruangguru" /></a></p>
<p style="text-align: justify;"><strong>Referensi:</strong></p>
<p style="text-align: left;">Wagiyo, A., Mulyono, S., dan Susanto. (2008). Pegangan Belajar Matematika. Jakarta: Kemendikbud.</p>
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<picture>
<source srcset="https://cdn-web-2.ruangguru.com/static/youtube.png?height=60&convert=webp" type="image/webp">
<source srcset="https://cdn-web-2.ruangguru.com/static/youtube.png?height=60" type="image/png">
<img src="https://cdn-web-2.ruangguru.com/static/youtube.png" loading=" lazy" alt="Logo Youtube Footer" width="32px" height="32px" />
</picture>
</a>
<a target="_blank" href="https://www.linkedin.com/company/ruangguru-com">
<picture>
<source srcset="https://cdn-web-2.ruangguru.com/static/linkedin.png?height=60&convert=webp" type="image/webp">
<source srcset="https://cdn-web-2.ruangguru.com/static/linkedin.png?height=60" type="image/png">
<img src="https://cdn-web-2.ruangguru.com/static/linkedin.png" loading=" lazy" alt="Logo LinkedIn Footer" width="32px" height="32px" />
</picture>
</a>
<a target="_blank" href="https://www.tiktok.com/@ruangguru">
<picture>
<source srcset="https://cdn-web-2.ruangguru.com/static/tiktok.png?height=60&convert=webp" type="image/webp">
<source srcset="https://cdn-web-2.ruangguru.com/static/tiktok.png?height=60" type="image/png">
<img src="https://cdn-web-2.ruangguru.com/static/tiktok.png" loading=" lazy" alt="Logo TikTok Footer" width="32px" height="32px" />
</picture>
</a>
</nav>
</div>
<p class="footer-copyright">
© 2026 All Rights Reserved PT. Ruang Raya Indonesia
</p>
</div>
<style>
.bantuan-container {
position: relative;
}
.bantuan-element {
position: fixed;
z-index: 999;
display: flex;
align-items: flex-end;
justify-content: flex-end;
cursor: pointer;
transition: all 0.6s ease;
}
.bantuan-top {
bottom: 11rem;
right: 2rem;
}
.bantuan-bottom {
bottom: 2rem;
right: 2rem;
}
.bantuan-top-2 {
bottom: 15rem;
right: 2rem;
}
.bantuan-top-3 {
bottom: 19rem;
right: 2rem;
}
.bantuan-bottom-2 {
bottom: 5rem;
right: 2rem;
}
.bantuan-bottom-3 {
bottom: 8rem;
right: 2rem;
}
@media (min-width: 768px) {
.bantuan-element img {
width: auto;
transition: all 0.4s ease;
}
.bantuan-top img {
width: 140px;
}
.bantuan-bottom img {
width: 140px;
}
.bantuan-top-2 img,
.bantuan-top-3 img {
width: 140px;
}
.bantuan-bottom-2 img,
.bantuan-bottom-3 img {
width: 140px;
}
.bantuan-element.clicked {
bottom: 9rem;
right: 2.5rem;
}
.bantuan-element.clicked img {
width: auto;
height: 64px;
}
}
@media (max-width: 767px) {
.bantuan-top {
bottom: 8rem;
right: 1rem;
align-items: center;
}
.bantuan-bottom {
bottom: 2rem;
right: 1.25rem;
align-items: center;
}
.bantuan-top-2 {
bottom: 12rem;
right: 1rem;
align-items: center;
}
.bantuan-top-3 {
bottom: 16rem;
right: 1rem;
align-items: center;
}
.bantuan-bottom-2 {
bottom: 5rem;
right: 1.25rem;
align-items: center;
}
.bantuan-bottom-3 {
bottom: 8rem;
right: 1.25rem;
align-items: center;
}
.bantuan-element img {
width: auto;
}
.bantuan-top img,
.bantuan-top-2 img,
.bantuan-top-3 img {
width: 96px;
}
.bantuan-bottom img,
.bantuan-bottom-2 img,
.bantuan-bottom-3 img {
width: 96px;
}
}
.bantuan-element:hover {
transform: scale(1.05);
}
.bantuan-element img {
max-width: 100%;
height: auto;
}
</style>
<div id="bantuan-divs-container" style="position: relative" data-product="ruangguru" data-table="rg_floating_icon"></div>
<script>
class FloatingDivsComponent {
constructor(product = 'ruangguru', table = 'rg_floating_icon') {
this.container = document.getElementById('bantuan-divs-container');
this.floatingElements = [];
this.product = product;
this.table = table;
// Configuration
this.config = {
baseApiUrl: 'https://gw.ruangguru.com/api/v3/rdb/p_ddgy8hjx5dxsqx/rg_banner/views/',
apiKey: 'vLyK3dJrDBRmOwueX2OJXibMkgsUbBk0WS4ua2p1',
maxElements: 2,
zIndexBase: 100,
};
// Build dynamic API URL based on table parameter
this.config.apiUrl = this.buildApiUrl();
this.init();
}
buildApiUrl() {
const baseUrl = this.config.baseApiUrl;
const tableName = this.table || 'rg_floating_icon';
const queryParams =
'offset=0&limit=99999&sort=rankPosition&where=(type,eq,floating)~and(showIn,anyof,blog)~and(hide,is,false)~and(product,eq,' +
this.product +
')&nested%5Bcta%5D%5Bfields%5D=Id,name,ctaId,imageUrl,ctaLink,targetUrl';
return `${baseUrl}${tableName}?${queryParams}`;
}
async init() {
try {
await this.fetchFloatingElements();
this.renderFloatingElements();
} catch (error) {
console.error('Failed to initialize floating divs component:', error);
}
}
async fetchFloatingElements() {
try {
const options = {
method: 'GET',
headers: {
'xc-token': this.config.apiKey || 'vLyK3dJrDBRmOwueX2OJXibMkgsUbBk0WS4ua2p1',
},
};
const urlNoco = this.config.apiUrl;
const response = await fetch(urlNoco, options);
if (!response.ok) {
throw new Error(`HTTP error! status: ${response.status}`);
}
const data = await response.json();
this.floatingElements = this.processApiResponse(data);
} catch (error) {
console.error('Error fetching floating elements:', error);
throw error;
}
}
processApiResponse(data) {
if (!data || !data.list || !Array.isArray(data.list)) {
return [];
}
console.log(data.list);
// Ensure we only get maximum 2 elements
const limitedElements = data.list.slice(0, this.config.maxElements);
return limitedElements;
}
renderFloatingElements() {
if (!this.container || this.floatingElements.length === 0) {
return;
}
// Additional safeguard: ensure we never render more than maxElements
const elementsToRender = this.floatingElements.slice(0, this.config.maxElements);
// Clean up existing elements and their event listeners
this.cleanupExistingElements();
// Clear existing content
this.container.innerHTML = '';
elementsToRender.forEach((element, index) => {
const floatingDiv = this.createFloatingDiv(element, index);
this.container.appendChild(floatingDiv);
});
}
cleanupExistingElements() {
// Clear existing elements (no need for event listener cleanup with CSS approach)
const existingElements = this.container.querySelectorAll('[data-floating-element]');
existingElements.forEach(element => {
element.remove();
});
}
createFloatingDiv(element, index) {
const div = document.createElement('div');
const cta = element.cta[0]; // Use the first CTA
// Add data attribute for cleanup tracking
div.setAttribute('data-floating-element', 'true');
// Apply CSS classes based on rankPosition
const positionClass = this.getPositionClass(element.rankPosition, index);
div.className = `bantuan-element ${positionClass}`;
div.style.zIndex = this.config.zIndexBase + index;
// Create the link and image
const link = document.createElement('a');
link.href = 'https://cta.ruangguru.com/' + cta.ctaId || '#';
link.target = '_blank';
// Add tracking attributes
link.setAttribute('data-tracking-event-type', 'landing_page__core__item_click');
link.setAttribute(
'data-tracking-context',
JSON.stringify({
product_name: this.product,
cta_action: 'redirection',
cta_action_detail: link.href,
item_type: 'floating',
item_name: element.name || 'Floating element',
item_category: 'payment',
item_position: index,
item_serial: null,
section_type: 'floating_item',
section_position: 'body',
section_name: 'floating_item',
})
);
const img = document.createElement('img');
img.src = element.imageUrl + '?h=200&convert=webp';
img.alt = element.name || 'Floating element';
img.loading = 'lazy';
// Add click tracking
link.addEventListener('click', () => {
this.trackClick(element, cta);
});
link.appendChild(img);
div.appendChild(link);
return div;
}
getPositionClass(rankPosition, index) {
// Define positioning classes based on rankPosition
if (rankPosition === 1) {
return 'bantuan-top'; // Top position
} else if (rankPosition === 2) {
return 'bantuan-bottom'; // Bottom position
} else {
// For additional elements, distribute them evenly
return `bantuan-${index % 2 === 0 ? 'top' : 'bottom'}-${Math.floor(index / 2) + 1}`;
}
}
trackClick(element, cta) {
// Implement click tracking logic here
console.log('Floating element clicked:', {
elementId: element.Id,
elementName: cta.name,
ctaId: cta.ctaId,
targetUrl: cta.targetUrl,
});
}
// Public method to manually refresh
async refresh() {
try {
await this.fetchFloatingElements();
this.renderFloatingElements();
} catch (error) {
console.error('Failed to refresh floating elements:', error);
throw error;
}
}
// Public method to get current floating elements
getFloatingElements() {
return [...this.floatingElements];
}
}
// Initialize the component when DOM is ready
document.addEventListener('DOMContentLoaded', () => {
// Get product and table parameters from data attributes
const container = document.getElementById('bantuan-divs-container');
const product = container.getAttribute('data-product') || 'ruangguru';
const table = container.getAttribute('data-table') || 'rg_floating_icon';
new FloatingDivsComponent(product, table);
});
// Export for use in other modules if needed
if (typeof module !== 'undefined' && module.exports) {
module.exports = FloatingDivsComponent;
}
</script> <div id="wp-install-nudge" style="
position: fixed;
bottom: 0rem;
right: 0;
z-index: 999;
cursor: pointer;
"></div>
<script>
(function (w, d, s, o, f, js, fjs) {
w['Sales-Nudge-Widget'] = o; w[o] = w[o] || function () { (w[o].q = w[o].q || []).push(arguments) };
js = d.createElement(s), fjs = d.getElementsByTagName(s)[0];
js.id = o; js.src = f; js.async = 1; fjs.parentNode.insertBefore(js, fjs);
}(window, document, 'script', 'wpInstallNudge', 'https://cdn-web-2.ruangguru.com/sales-nudge/6198a95130/dist/widget.js'));
wpInstallNudge('init', { targetElementId: 'wp-install-nudge', clientTarget: 'ruangguru_blog' });
</script>
<script>
// note: disabled due to auto reload page
// var lastScrollTop = 0;
// $(window).scroll(function(event){
// var st = $(this).scrollTop();
// if (st > lastScrollTop){
// $('#wp-install-nudge').slideDown( "slow", function() {});
// } else {
// $('#wp-install-nudge').slideUp( "slow", function() {});
// }
// lastScrollTop = st;
// });
// $(document).ready(function () {
// $("#wp-install-nudge").hide();
// });
$('#wp-install-nudge').click(function(){
Analytics.track("promotion__install_nudge__click",
{
user_email: "ruangguru@blog.com",
cta_link: widgetData.dataConfig.target_link
}).catch((err) => {
console.log("tracker error", err);
});
});
</script>
</footer>
<div id="__next"></div>
<script type="speculationrules">
{"prefetch":[{"source":"document","where":{"and":[{"href_matches":"\/blog\/*"},{"not":{"href_matches":["\/blog\/wp-*.php","\/blog\/wp-admin\/*","\/blog\/wp-content\/uploads\/*","\/blog\/wp-content\/*","\/blog\/wp-content\/plugins\/*","\/blog\/wp-content\/themes\/ruangguru\/*","\/blog\/*\\?(.+)"]}},{"not":{"selector_matches":"a[rel~=\"nofollow\"]"}},{"not":{"selector_matches":".no-prefetch, .no-prefetch a"}}]},"eagerness":"conservative"}]}
</script>
<script>
async function getCtaDetails(ctaIds) {
const endpoint =
" https://gw.ruangguru.com/api/v3/rdb/p_ddgy8hjx5dxsqx/CTA/views/CTA?offset=0&limit=10&where=(ctaId,in," + ctaIds.toString() + ")";
try {
const response = await fetch(endpoint, {
headers: {
"xc-token": "-hG2nBDJzSj0agSgNtcJx97M4F02y54nUMoY6plJ",
},
});
const data = await response.json();
const ctaList = data?.list || [];
const ctaMap = new Map();
for (const ctaData of ctaList) {
ctaMap.set(ctaData.ctaId, ctaData);
}
return ctaMap;
} catch (error) {
console.error("Error fetching CTA details:", error);
return new Map();
}
}
async function replaceCTA() {
const regex = /{{cta\((‘(.*?)’|“(.*?)”)\)}}/g;
const bodyHTML = document.body.innerHTML;
const matches = Array.from(bodyHTML.matchAll(regex));
const ctaIds = matches.map((match) => {
let ctaId = match[2] ?? match[3];
return ctaId;
});
const ctaMap = await getCtaDetails(ctaIds);
const replacedHTML = bodyHTML.replace(regex, (match, _inner, ctaId1, ctaId2) => {
const ctaId = ctaId1 ?? ctaId2;
const ctaData = ctaMap.get(ctaId);
if (ctaData) {
return `<a href="https://cta.ruangguru.com/${ctaData.ctaId}" target="_${ctaData.targetType}" style="position:relative;display:inline-block;">
<img src="${ctaData.imageUrl}" loading="lazy" alt="${ctaData.altText}" />
</a>`;
} else {
return match;
}
});
document.body.innerHTML = replacedHTML;
}
</script>
<meta name="author" content="Ruangguru Tech Team">
<!-- Google Tag Manager (noscript) -->
<noscript><iframe src="https://www.googletagmanager.com/ns.html?id=GTM-PVNLZFT" height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript>
<!-- Tracker -->
<script type="text/javascript" src="https://cdn-web-2.ruangguru.com/landing-page-web/public/staticpages/global-assets/js/cta.js"></script>
<script src="https://unpkg.com/@dotlottie/player-component@latest/dist/dotlottie-player.mjs" type="module"></script>
</body>
</html>