SOLUTION: The question is: Evaluate. Cube is outside the square root symbol and negative 125 is inside. How do I solve this problem? Any assistance is appreciated. Thank you.

Question 87471: The question is:
Evaluate. Cube is outside the square root symbol and negative 125 is inside. How do I solve this problem? Any assistance is appreciated.
Thank you.
Answer by rapaljer(4671) (Show Source): You can put this solution on YOUR website!
I believe what you mean is .

The answer is -5, since if you take -5 and cube it (that is ), you get -125.

It is important to realize that the cube root of a negative number is a negative number, but the SQUARE root of a negative number is not possible in the real numbers. If you have studied imaginary numbers (or complex numbers!), then a square root of a negative is an imaginary number (involving the letter "i")!

R^2 Retired from SCC
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