Answer
9$\sqrt 5$
Work Step by Step
You are given $12$$\sqrt 5$ $-$ $3$$\sqrt 5$. Solve:
$\sqrt 5$(12-3) -use the distribute property to subtract similar elements-
Simplify to get 9$\sqrt 5$
Algebra 1: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281140
ISBN 13:
978-0-13328-114-9
Chapter 10 - Radical Expressions and Equations - 10-3 Operations With Radical Expressions - Practice and Problem-Solving Exercises - Page 629: 10
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