# How do you solve #x^2+10x-1=0# by completing the square?

##### 1 Answer

Apr 7, 2018

#### Explanation:

Isolate all terms involving

Now, the original quadratic,

To complete the square, we first want to add

The left side needs to be factored. Fortunately, since we added

Now, take the root of both sides, accounting for positive and negative answers on the right.

Solving for