Answer
$-3x\sqrt {5y}$
Work Step by Step
$3x\sqrt {5y}-6\sqrt {5x^{2}y}$
=$3x\sqrt {5y}-6\sqrt {x^{2}\times5y}$
=$3x\sqrt {5y}-6x\sqrt {5y}$
=$(3x-6x)\sqrt {5y}$
=$-3x\sqrt {5y}$
Intermediate Algebra: Connecting Concepts through Application
by Clark, Mark; Anfinson, Cynthia
Published by
Brooks Cole
ISBN 10:
0-53449-636-9
ISBN 13:
978-0-53449-636-4
Chapter 8 - Radical Functions - Chapter Review Exercises - Page 670: 40
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