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

### Step-By-Step Example

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

### Example (Click to try)

3 x 2 − 2 x − 1 = 0

### Choose Your Method

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

#### Solve By Factoring

#### Complete The Square

#### Take the Square Root

#### Quadratic Formula

### About quadratic equations

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

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

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

(After you click the example, change the Method to 'Solve By Completing the Square'.)

Example:
2x^2=18

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

** Need more problem types?** Try MathPapa Algebra Calculator