Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 10 - Review: 116


$\frac{x-25}{-3\sqrt x+15}$

Work Step by Step

$\frac{\sqrt x+5}{-3}\times\frac{\sqrt x-5}{\sqrt x-5}$ =$\frac{(\sqrt x+5)(\sqrt x-5)}{-3(\sqrt x-5)}$ =$\frac{\sqrt x(\sqrt x-5)+5(\sqrt x-5)}{-3\sqrt x+15}$ =$\frac{x-5\sqrt x+5\sqrt x-25}{-3\sqrt x+15}$ =$\frac{x-25}{-3\sqrt x+15}$
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