Algebra: A Combined Approach (4th Edition)

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: 25

Answer

$2b\sqrt {b}$

Work Step by Step

$\sqrt {9b^3}-\sqrt {25b^3}+\sqrt {16b^3}$ Factor. $\sqrt {9b^2}\sqrt {b}-\sqrt {25b^2}\sqrt {b}+\sqrt {16b^2}\sqrt {b}$ Simplify. $3b\sqrt {b}-5b\sqrt {b}+4b\sqrt {b}$ Combine like radicals. $2b\sqrt {b}$
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