Answer
$multiplying \ by \ 1$
Work Step by Step
Since both the numerator and the denominator of the radicand are multiplied by the same number, the given equality is justified by $\text{
$multiplying \ by \ 1$
.}$
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 - 10.4 Dividing Radical Expressions - 10.4 Exercise Set - Page 653: 2
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