Answer
$4\sqrt 2$
Work Step by Step
$\sqrt 32=\sqrt 4 \times\sqrt 4\times\sqrt 2=(2\times2)\times\sqrt 2=4\sqrt 2$
We know that $\sqrt 4=2$, because $2^{2}=4$.
Intermediate Algebra (6th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321785045
ISBN 13:
978-0-32178-504-6
Chapter 7 - Section 7.3 - Simplifying Radical Expressions - Exercise Set - Page 433: 31
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