Answer
$32$
Work Step by Step
Using the laws of exponents, the given expression, $
\dfrac{4.2^5}{2.1^5}
,$ is equivalent to
\begin{array}{l}\require{cancel}
\left( \dfrac{4.2}{2.1} \right)^5
\\\\=
\left( 2 \right)^5
\\\\=
32
.\end{array}
College Algebra (11th Edition)
by Lial, Margaret L.; Hornsby John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
0321671791
ISBN 13:
978-0-32167-179-0
Chapter R - Section R.3 - Polynomials - R.3 Exercises - Page 31: 109
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