College Algebra 7th Edition

Published by Brooks Cole
ISBN 10: 1305115546
ISBN 13: 978-1-30511-554-5

Chapter P, Prerequisites - Section P.4 - Rational Exponents and Radicals - P.4 Exercises - Page 30: 52


(a) $25$ (b) $\frac{125}{512}$ (c) $\frac{1}{81}$

Work Step by Step

(a) $125^{2/3}=((125)^{1/3})^2=5^{2}=25$ (b) $(\frac{25}{64})^{3/2}=(\frac{5}{8})^{3}=\frac{125}{512}$ (c) $27^{-4/3}=3^{-4}=\frac{1}{81}$
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