Answer
$\sqrt[20] a$
Work Step by Step
$\dfrac{\sqrt[4] a}{\sqrt[5] a}=\dfrac{a^{1/4}}{a^{1/5}}=a^{1/4-1/5}=a^{1/20}=\sqrt[20] a$
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 10.2 - Rational Exponents - Exercise Set - Page 694: 76
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