Answer
$3\sqrt[3] 3$
Work Step by Step
$\sqrt[3] {81}=\sqrt[3] {27\times3}=\sqrt[3] {27}\times\sqrt[3] 3=3\sqrt[3] 3$
Precalculus (6th Edition) Blitzer
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13446-914-3
ISBN 13:
978-0-13446-914-0
Chapter P - Review Exercises - Page 143: 58
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