Answer
$\frac{4r^{5/2}}{s^{7}}$
Work Step by Step
$\displaystyle \frac{8r^{1/2}s^{-3}}{2r^{-2}s^4}=4r^{1/2- -2}s^{-3-4}=4r^{5/2}s^{-7}=\frac{4r^{5/2}}{s^{7}}$
College Algebra 7th Edition
by Stewart, James; Redlin, Lothar; Watson, Saleem
Published by
Brooks Cole
ISBN 10:
1305115546
ISBN 13:
978-1-30511-554-5
Chapter P, Prerequisites - Chapter P Review - Exercises - Page 76: 45
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