#### Answer

$8y^{4}\sqrt y$

#### Work Step by Step

$\sqrt {64y^{9}}=\sqrt {64}\sqrt {y^{8}}\sqrt {y}=8y^{4}\sqrt y$

Published by
Pearson

ISBN 10:
0321726391

ISBN 13:
978-0-32172-639-1

$8y^{4}\sqrt y$

$\sqrt {64y^{9}}=\sqrt {64}\sqrt {y^{8}}\sqrt {y}=8y^{4}\sqrt y$

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