# How do you solve #sqrt(x+5 ) + sqrt(x-5) = 10#?

##### 1 Answer

Sep 8, 2015

#### Answer:

Rearrange and square a couple of times to find:

#### Explanation:

Subtract

Square both sides to get:

Add

Subtract

Divide both sides by

Square both sides to get:

Add

Since we have squared the equation a couple of times, we should check that the solution is correct and not spurious:

Let

Then: