Answer
$\frac{\sqrt[4] {a^3}}{3}$
Work Step by Step
$\sqrt[4]\frac{a^3}{81} =\frac{\sqrt[4] {a^3}}{\sqrt[4] {81}}=\frac{\sqrt[4] {a^3}}{\sqrt[4] {3^4}}=\frac{\sqrt[4] {a^3}}{3}$
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 10 - Section 10.3 - Simplifying Radical Expressions - Exercise Set - Page 702: 22
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