# Chapter 7 - Exponents and Exponential Functions - 7-5 Division Properties of Exponents - Mixed Review: 98

$\frac{1}{8m^{21}}$

#### Work Step by Step

= $(2m^{-7})^{3}$ = $(2)^{3}(m^{-7})^{3}$ = $8m^{-21}$ =$\frac{1}{8m^{21}}$

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