# How do you check that you factored a quadratic correctly?

##### 1 Answer

Mar 15, 2018

If both the roots satisfy the quadratic equation, then you have factorised it correctly.

#### Explanation:

I will try explaining with an example.

The roots are

Now simply put the values in the quadratic equation.

First, I will try

which is true.

Now, I will try

which is also true.

Hope you got it :)