#### Answer

$1$

#### Work Step by Step

Recall, square roots cancel out exponents of two. Thus, we obtain:
$\sqrt{25}-\sqrt{16}\\\\=\sqrt{5^2}-\sqrt{4^2}
\\=5-4
\\=1$

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Published by
Pearson

ISBN 10:
0-13417-894-7

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

$1$

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