# How do you solve #x² - 2x = 15# by completing the square?

##### 3 Answers

#### Explanation:

Although there is a better method, completing the square method is as such:

rearrange the formula to equate 0:

Rearrange to get:

Square root on both sides to get:

Therefore adding 1 to both sides gives us either:

#### Explanation:

As

Your value of

Now solve for

Therefore,