Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 7 - Section 7.4 - Adding, Subtracting, and Multiplying Radical Expressions - Exercise Set - Page 439: 42

Answer

$\frac{\sqrt[3] 3}{2}$

Work Step by Step

$\frac{\sqrt[3] 3}{10} + \sqrt[3] \frac{24}{125}$ Using rules for radicals, $= \frac{\sqrt[3] 3}{10} +\frac{\sqrt[3] 24}{\sqrt[3] 125}$ $= \frac{\sqrt[3] 3}{10} +\frac{\sqrt[3](3 \times 8) }{\sqrt[3]5^{3}}$ $= \frac{\sqrt[3] 3}{10} +\frac{\sqrt[3](3 \times 2^{3}) }{\sqrt[3]5^{3}}$ $= \frac{\sqrt[3] 3}{10} +\frac{ 2 \sqrt[3]3 }{5}$ $= \frac{\sqrt[3] 3 + 4 \sqrt[3]3 }{10} $ $= \frac{5 \sqrt[3] 3}{10} $ $= \frac{ \sqrt[3] 3}{2} $
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