SOLUTION: simplify. write your answer with only positive exponents (r^3)^-5 over r (r^3)^-4

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Question 831462: simplify. write your answer with only positive exponents (r^3)^-5 over r (r^3)^-4
Answer by hovuquocan1997(83) About Me  (Show Source):
You can put this solution on YOUR website!
(r^3)^-5 over r(r^3)^-4
= r^-15 over r(r^-12)
= r^-15 over r^-11
= r^-4
= 1 over r^4