SOLUTION: Really need help with this one. Solve the equation. ^3 sqrt(x^2) = 4

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Question 63923: Really need help with this one.
Solve the equation.

^3 sqrt(x^2) = 4
Answer by funmath(2933) About Me  (Show Source):
You can put this solution on YOUR website!
I don't really know what you mean. What did you mean by ^3? Did you mean the third root of x^2? If so, this is what you do.
Solve the equation.

3rd rt(x^2) = 4
(3rd rt(x^2))^3=4^3
x^2=64
sqrt%28x%5E2%29=%2B-sqrt%2864%29
x=+\-8
:
Check for extraneous solutions:
3rd rt((8)^2)=4
3rd rt (64)=4
4=4 x=8 checks out.
3rd rt((-8)^2)=4
3rd rt(64)=4
4=4 x=-8 also checks out.
Happy Calculating!!!