# How do you solve the quadratic equation by completing the square: #x^2-6x-8=0#?

##### 1 Answer

Jul 14, 2015

#### Explanation:

In order to solve a quadratic equation by completing the square, we must force a perfect square trinomial on the left side.

Add

Divide the coefficient of the

We now have a perfect square trinomial on the left side, in which

Now we can solve for

Take the square root of both sides.