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: 8

Answer

$-7a\sqrt[3]{3a}$

Work Step by Step

$2\sqrt[3] {3a^4}-3a\sqrt[3]{81a}$ Factor. $2\sqrt[3] {a^3}\sqrt[3]{3a}-3a\sqrt[3]{27}\sqrt[3]{3a}$ Simplify. $2a\sqrt[3]{3a}-9a\sqrt[3]{3a}$ Combine like radicals. $-7a\sqrt[3]{3a}$
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