Answer
$7\sqrt2$
Work Step by Step
Simplify each radical to obtain:
$=\sqrt{25(2)} + \sqrt{4(2)}
\\=\sqrt{5^2(2)}+\sqrt{2^2(2)}
\\=5\sqrt2 + 2\sqrt2
\\=\sqrt2(5+2)
\\=\sqrt2(7)
\\=7\sqrt2$
Thinking Mathematically (6th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0321867327
ISBN 13:
978-0-32186-732-2
Chapter 5 - Number Theory and the Real Number System - Chapter Summary, Review, and Test - Review Exercises - Page 335: 73
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