Answer
3
Work Step by Step
We know that $\sqrt[6] 729=3$, because $3^{6}=3\times3\times3\times3\times3\times3=729$.
Intermediate Algebra (12th Edition)
by Lial, Margaret L.; Hornsby, John; McGinnis, Terry
Published by
Pearson
ISBN 10:
0321969359
ISBN 13:
978-0-32196-935-4
Chapter 7 - Section 7.1 - Radical Expressions and Graphs - 7.1 Exercises - Page 440: 28
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