# Radicals and Absolute Value: why do you sometimes need abs-v

#### eouirai

##### New member
How come sometimes when you find the square root of something, you need absolute value signs? Why is the square root of x^6, |x^3|?

#### Loren

##### Senior Member
If x is a negative number, is $$\displaystyle \sqrt{x^6}$$ positive or negative?