#### Answer

$10x^2y^2\sqrt{xy}$

#### Work Step by Step

$9y^2\sqrt{x^5y}+x^2\sqrt{xy^5}$
Factor out perfect squares.
$9y^2\sqrt{x^4xy}+x^2\sqrt{xy^4y}$
Simplify.
$9x^2y^2\sqrt{xy}+x^2y^2\sqrt{xy}$
Add like radicals.
$10x^2y^2\sqrt{xy}$

Published by
Pearson

ISBN 10:
0-13417-805-X

ISBN 13:
978-0-13417-805-9

$10x^2y^2\sqrt{xy}$

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