Posted by **Kristen** on Wednesday, January 16, 2013 at 10:16pm.

Hello I have a question about a problem. The problem is (- 25/9)^3/2. Its multiple choice however I think they are tricking us.

A. 125/27

B. - 125/27

C. 125/3

D. Not a real number

I got A as an answer but feel that it is not a real number?

- One college algebra ? -
**Kristen**, Wednesday, January 16, 2013 at 10:27pm
NM it is D not a real number

- One college algebra ? -
**Reiny**, Thursday, January 17, 2013 at 12:17am
(- 25/9)^3/2

= [(- 25/9)^3]^(1/2)

we are taking the square root of a negative number, so

no real number.

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