# How do you solve (X-8)^2=144?

Mar 18, 2018

$x = - 4 , 20$

#### Explanation:

We can take the $\pm$ square root of both sides to get:

$x - 8 = \pm 12$

We can now split up this equation into the following:

$x - 8 = 12$ and $x - 8 = - 12$

Adding $8$ to both sides of both equations simultaneously, we get:

$x = 20$ and $x = - 4$