Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Prerequisites - P.2 - Exponents and Radicals - Exercises - Page 24: 28


a) $32y^2$ b) $\frac{1}{(z+2)^{4}}$

Work Step by Step

a) $(4y^{-2})(8y^4)=4\cdot8\cdot y^{-2+4}=32y^2$ b) $(z+2)^{-3}(z+2)^{-1}=(z+2)^{-3-1}=(z+2)^{-4}=\frac{1}{(z+2)^{4}}$
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