Answer
$\frac{25b^2}{a^2}$
Work Step by Step
$(\frac{a}{5b})^{-2}=(\frac{5b}{a})^2=\frac{(5b)^2}{a^2}=\frac{25b^2}{a^2}$
Algebra 1: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281140
ISBN 13:
978-0-13328-114-9
Chapter 7 - Exponents and Exponential Functions - 7-4 Division Properties of Exponents - Got It? - Page 442: 4
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