Quadratic Equation Solver

What do you want to calculate?

Example: 3x^2-2x-1=0

Step-By-Step Example

Learn step-by-step how to solve quadratic equations!

Example (Click to try)


Choose Your Method

There are different methods you can use to solve quadratic equations, depending on your particular problem.

Solve By Factoring

Example: 3x^2-2x-1=0

Complete The Square

Example: 3x^2-2x-1=0
(After you click the example, change the Method to 'Solve By Completing the Square'.)

Take the Square Root

Example: 2x^2=18

Quadratic Formula

Example: 4x^2-2x-1=0

About quadratic equations

Quadratic equations have an x^2 term, and can be rewritten to have the form: ax2+bx+c=0

Need more problem types? Try MathPapa Algebra Calculator

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