Answer
$24\sqrt 2-8\sqrt 3$
Work Step by Step
$4\sqrt {72}-2\sqrt {48}=4\sqrt {36\times2}-2\sqrt {16\times3}=4\times6\sqrt 2-2\times4\sqrt 3=24\sqrt 2-8\sqrt 3$
Precalculus (6th Edition) Blitzer
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13446-914-3
ISBN 13:
978-0-13446-914-0
Chapter P - Review Exercises - Page 143: 49
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