#### Answer

$2\sqrt{7}$

#### Work Step by Step

Factor the radicand (expression inside the radical sign) so that one factor is a perfect square, and then simplify to obtain:
$=\sqrt{4(7))}
\\=\sqrt{2^2(7)}
\\=2\sqrt{7}$

Published by
Pearson

ISBN 10:
0-13417-894-7

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

$2\sqrt{7}$

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