Answer
$b^{3}$
Work Step by Step
The given expression is
$=\frac{b^{-5}}{a^0b^{-8}}$
Use $a^0=1$.
$=\frac{b^{-5}}{1b^{-8}}$
Use $\frac{a^n}{a^m}=a^{n-m}$.
$=b^{-5-(-8)}$
Simplify.
$=b^{-5+8}$
$=b^{3}$
Big Ideas Math - Algebra 1, A Common Core Curriculum
by Larson, Ron; Boswell, Laurie
Published by
Big Ideas Learning LLC
ISBN 10:
978-1-60840-838-2
ISBN 13:
978-1-60840-838-2
Chapter 6 - Exponential Functions and Sequences - Chapter Test - Page 351: 5
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