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.
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-> 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.
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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):
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")!
