SOLUTION: what do you do when you have a number to a negative exponent? for example 4 to the -3/2?

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Question 301437: what do you do when you have a number to a negative exponent? for example 4 to the -3/2?
Found 2 solutions by vleith, richwmiller:
Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
If the number is in the numerator, move the number to the denominator and change the sign.
If the number is in the denominator, move the number to the numerator and change the sign.
4%5E%28-3%2F2%29
%281%2F%284%29%5E%283%2F2%29%29
%281%2F%282%29%5E3%29
1%2F8

Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
x^(-2) means 1/x^2
so 4^(-3/2)=1/4^(3/2)
multiply by 4^(2/3)/4^(2/3) to get
4^(2/3)
which is the reciprocal.