College Algebra (10th Edition)

Published by Pearson
ISBN 10: 0321979478
ISBN 13: 978-0-32197-947-6

Chapter R - Section R.8 - nth Roots; Rational Exponents - R.8 Assess Your Understanding: 46

Answer

$(9x+20)\sqrt{y}$

Work Step by Step

We simplify: $3x\sqrt{9y}+4\sqrt{25y}=3*3x\sqrt{y}+4*5\sqrt{y}=9x\sqrt{y}+20\sqrt{y}=(9x+20)\sqrt{y}$
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