Answer
$9\sqrt{3}$
Work Step by Step
RECALL:
The distributive property states that for any real numbers a, b, and c:
$ac + bc = (a+b)c$
Use the rule above to combine like terms:
$=(7+2)\sqrt{3}
\\=9\sqrt{3}$
Intermediate Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-894-7
ISBN 13:
978-0-13417-894-3
Chapter 7 - Section 7.4 - Adding, Subtracting, and Dividing Radical Expressions - Exercise Set - Page 538: 2
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