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: 39

Answer

$\frac{5\sqrt {7}}{2x}$

Work Step by Step

$\sqrt \frac{28}{{x^2}}+\sqrt \frac{7}{{4x^2}}$ $\frac{2\sqrt {7}}{x}+\frac{\sqrt {7}}{2x}$ The LCD is 2x. $\frac{4\sqrt {7}}{2x}+\frac{\sqrt {7}}{2x}$ $\frac{5\sqrt {7}}{2x}$
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