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 - Page 709: 5


$17\sqrt {2}-15\sqrt5$

Work Step by Step

$2\sqrt {50}-3\sqrt {125}+\sqrt {98}$ Factor. $2\sqrt {25}\cdot\sqrt {2}-3\sqrt {25}\cdot\sqrt5+\sqrt{49}\cdot\sqrt{2}$ Use the product rule and simplify. $10\sqrt {2}-15\sqrt 5+7\sqrt2$ Combine like radicals. $17\sqrt {2}-15\sqrt5$
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