# Factoring Quadratic Expressions: $x^2 + bx + c$

### Factoring and Solving Quadratic Equations

A quadratic equation is one where the highest degree of an equation is 2 (example $x^2 = 25$ is a quadratic because of the $2$ on the $x$.)
The prefix “quad” means square, so quadratic equations are ones where the variable gets squared (example $n^2 + 3 = 39$.)