Answer
$A%$
Work Step by Step
RECALL:
The product rule $\sqrt{m} \cdot \sqrt{n} = \sqrt{mn}$ is only true when both $m$ and $n$ are positive.
Thus, the answer is $A$.
Precalculus (6th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
013421742X
ISBN 13:
978-0-13421-742-0
Chapter R - Review of Basic Concepts - R.7 Radical Expressions - R.7 Exercises - Page 74: 31
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