Answer
$5b\sqrt{b}$
Work Step by Step
$\sqrt{9b^3}-\sqrt{25b^3}+\sqrt{49b^3}$ Factor.
$\sqrt{9b^2}\sqrt{b}-\sqrt{25b^2}\sqrt{b}+\sqrt{49b^2}\sqrt{b}$ Simplify.
$3b\sqrt{b}-5b\sqrt{b}+7b\sqrt{b}$ Combine like radicals.
$5b\sqrt{b}$
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 10 - Section 10.4 - Adding, Subtracting, and Multiplying Radical Expressions - Exercise Set - Page 709: 9
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