<script id="MathJax-script" async src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js"> </script>to your web page and enter mathematics in $\rm\TeX$ or MathML formats.
If \(a \ne 0\) then \(ax^2 + bx + c = 0\) has two solutions, and they are \[ x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}. \]