<wj-body class="wj-body"><div class="wj-math wj-math-block" data-name="quadratic-formula"><span class="wj-equation-number"><span class="wj-equation-paren wj-equation-paren-open">(</span>1<span class="wj-equation-paren wj-equation-paren-close">)</span></span><code class="wj-math-source wj-hidden" aria-hidden="true">x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}</code><wj-math-ml class="wj-math-ml"><math xmlns="http://www.w3.org/1998/Math/MathML" display="block"><mi>x</mi><mo>=</mo><mfrac><mrow><mo>-</mo><mi>b</mi><mo>±</mo><msqrt><mrow><msup><mi>b</mi><mn>2</mn></msup><mo>-</mo><mn>4</mn><mi>a</mi><mi>c</mi></mrow></msqrt></mrow><mrow><mn>2</mn><mi>a</mi></mrow></mfrac></math></wj-math-ml></div></wj-body>