Quadratic Equations — Solve quadratic equations with the square root rule…

You're probably used to linear equations like 2x + 3 = 7, where the highest power of x is 1. A quadratic equation steps things up a notch: the highest power of your variable (usually x) is 2.

The standard form of a quadratic equation is super important:

ax² + bx + c = 0

Let's break down what each part means:

The square root rule is ideal for quadratic equations that look like $ax^2 + c = 0$ or $(x+k)^2 = d$. The key is that there's no single 'x' term (e.g., no $bx$ term).

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Photo by Anna Tarazevich on Pexels