Questions on Algebra: Negative and Fractional exponents answered by real tutors!

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Question 159976: What should I do with the negative sign when simplifying this exponent?
9 ^-2/3
Does the fact that 1/9 has parenthesis around it change the solve?
(1/9)^3/2: What should I do with the negative sign when simplifying this exponent?
9 ^-2/3
Does the fact that 1/9 has parenthesis around it change the solve?
(1/9)^3/2
Answer by vleith(1235) About Me  (Show Source):
You can put this solution on YOUR website!
See this --> http://www.purplemath.com/modules/exponent2.htm
9 ^ (-2/3)
1/(9 ^ (2/3))
1/4.33
0.231

2)
(1/9)^(3/2)
(1/3)^3
1/27
SO that changes things a bit doesn't it :)