<p><a target="_blank" href="https://www.prepswift.com/quizzes/quiz/prepswift-the-quadratic-formula">The Quadratic Formula Exercise</a></p><p>The <span style="color:#27ae60;">Quadratic Formula</span> is a pain in the ass to use, but it <strong><u>always</u></strong> works. It never fails. And it works for every quadratic. The solutions of</p>
<p style="text-align: center;">$$ax^2 + bx + c = 0$$</p>
<p style="text-align: center;">are </p>
<p style="text-align: center;">$$x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}$$</p>