Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 7 - Section 7.1 - Radicals and Radical Functions - Exercise Set: 40



Work Step by Step

$\sqrt[4] (81x^{4})=3x$, because $(3x)^{4}=3x \times3x \times3x\times 3x=(3\times3\times3\times3)\times x^{1+1+1+1}=81x^{4}$
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