Elementary Algebra

Published by Cengage Learning
ISBN 10: 1285194055
ISBN 13: 978-1-28519-405-9

Chapter 11 - Additional Topics - 11.3 - Fractional Exponents - Problem Set 11.3: 32

Answer

27

Work Step by Step

Recall the formula:$ a^{b/c}=( \sqrt[c] {a})^{b}$. Thus, we obtain: $(81^{3/4})=(\sqrt[4] {81})^{3}=(3^{3})=27$
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