Question 634638
(125a^2b^-3/5a^4b^-2)^-5 = a^10b^5/5^10
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(125a^2b^-3/5a^4b^-2)^-5
= (25a^2b^-3/a^4b^-2)^-5
= (25b^-3/a^2b^-2)^-5
= (25b^-1/a^2)^-5
= (25/a^2b)^-5
= (a^2b/25)^5
= (a^2b/5^2)^5
= a^10b^5/5^10