Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 10 - Radical Expressions and Equations - 10-3 Operations With Radical Expressions - Practice and Problem-Solving Exercises - Page 629: 19


$\frac{19}{2}\sqrt 5$

Work Step by Step

$-\frac{1}{2}\sqrt 5+2\sqrt 125$ $=-\frac{1}{2}\sqrt 5+2.5\sqrt 5$ $=\sqrt 5(-\frac{1}{2}+10)$ $=\frac{19}{2}\sqrt 5$
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