# How do you solve #x^2+4x=5# by completing the square?

##### 2 Answers

#### Explanation:

To write the Left Hand Side as a Perfect Square, we add 4 to both sides

Using the Identity

The solutions are

Adjust the left side so that it becomes a perfect square.

#### Explanation:

Completing the square only works when you don't have a coefficient in front of *did* have a coefficient other than one, you would have needed to divide every part of the expression by that value to make it one.

The next step is to look at the coefficient of

Remember: whatever you add to one side, you need to add to the other.

So the solution set is is