#### Answer

$2y^{5}$

#### Work Step by Step

$\sqrt {4y^{10}}$
=$\sqrt 4 \times \sqrt {y^{10}}$
=$2 \times (y^{10})^{\frac{1}{2}}$
=$2 \times (y^{5})$
=$2y^{5}$

Published by
Pearson

ISBN 10:
0321726391

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

$2y^{5}$

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