Introductory Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-805-X
ISBN 13: 978-0-13417-805-9

Chapter 8 - Section 8.3 - Operations with Radicals - Exercise Set - Page 591: 10

Answer

$-20\sqrt{y}$

Work Step by Step

RECALL: For any real numbers $a, b,$ and $c$, $ac-bc=(a-b)c$ Use the rule above to combine like terms: $=(8-28)\sqrt{y} \\=-20\sqrt{y}$
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