Answer
$$4b^2$$
Work Step by Step
Factor the terms inside the radical
$$\sqrt[3]{64b^6}=\sqrt[3]{2^6b^6}=\sqrt[3]{2^32^3b^3b^3}$$
The cube root of a cubed expression is the expression
$$=2\times 2 \times b\times b=4b^2$$
Calculus with Applications (10th Edition)
by Lial, Margaret L.; Greenwell, Raymond N.; Ritchey, Nathan P.
Published by
Pearson
ISBN 10:
0321749006
ISBN 13:
978-0-32174-900-0
Prerequisite Skills Diagnostic Test - Page xxiii: 24
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