Quadratic Equation

What is a quadratic equation?

By definition, a quadratic equation is one which contains the square of one of the variables, usually x and not y. Quadratic equations are often used in algebra.

Examples of quadratic equations

Each of the equations below is a quadratic equation in x. As long as the higher power of x is two, the equation is a quadratic equation.

Solving quadratic equations

In algebra math problems, solving quadratic equations is common. There are many ways of solving quadratic equations such as graphing quadratic equations and find the intersections. Factoring quadratic equations is also a good way to solve quadratic equations.

What is the quadratic formula for solving quadratic equations?

There is the famous quadratic formula for solving quadratic equations. See Quadratic formula.

• graphing quadratic equations