# How do you solve #n^2-4n-12=0# by completing the square?

##### 1 Answer

Jul 5, 2015

Move the 12 over, then add half the square of -4 to both sides and simplify.

#### Explanation:

First, move the 12 over to the right hand side:

Second, add half the square of -4 (the coefficient of

This made the left a perfect square, so change it:

The solution set is