#### Answer

$\sqrt{15}$

#### Work Step by Step

RECALL:
For nonegative numbers a and b,
$\sqrt{a} \cdot \sqrt{b} = \sqrt{ab}$
Use the rule above to obtain:
$=\sqrt{3\cdot5}
\\=\sqrt{15}$

Published by
Pearson

ISBN 10:
0-13417-894-7

ISBN 13:
978-0-13417-894-3

$\sqrt{15}$

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