Algebra: A Combined Approach (4th Edition)

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

Chapter 10 - Review: 95

Answer

$6$

Work Step by Step

$\sqrt 3(\sqrt {27}-\sqrt 3)$ =$\sqrt 3\times\sqrt {27}-\sqrt 3\times\sqrt 3$ =$(\sqrt 3\times\sqrt {9\times3})-(\sqrt 3\times\sqrt 3)$ =$(\sqrt 3\times3\sqrt {3})-(3)$ =$(3\times\sqrt 3\times\sqrt {3})-(3)$ =$3(3)-3$ =$9-3$ =$6$
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