Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)

Published by Pearson
ISBN 10: 0-32193-104-1
ISBN 13: 978-0-32193-104-7

Appendix A - Review - A.7 nth Roots; Rational Exponents - A.7 Assess Your Understanding - Page A61: 40

Answer

$ (9x+20)\sqrt y$

Work Step by Step

$3x\sqrt {9y}+4\sqrt {25y}=9x\sqrt {y}+20\sqrt {y}=(9x+20)\sqrt y$
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