Answer
$8\sqrt{5}$
Work Step by Step
The given expression, $
6\sqrt{5}+2\sqrt{5}
,$ simplifies to
\begin{array}{l}\require{cancel}
(6+2)\sqrt{5}
\\\\=
8\sqrt{5}
.\end{array}
Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)
by Bittinger, Marvin L.; Ellenbogen, David J.; Johnson, Barbara L.
Published by
Pearson
ISBN 10:
0-32184-874-8
ISBN 13:
978-0-32184-874-1
Chapter 10 - Exponents and Radicals - 10.5 Expressions Containing Several Radical Terms - 10.5 Exercise Set - Page 660: 8
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