# Chapter 7 - Exponents and Exponential Functions - 7-4 More Multiplication Properties of Exponents - Practice and Problem-Solving Exercises - Page 437: 32

$1$

#### Work Step by Step

Given expression : $(mg^{4})^{-1}(mg^{4})$ Now, $a^{-1}=\frac{1}{a}$ Hence, $(mg^{4})^{-1}=\frac{1}{mg^{4}}$ Thus, the expression becomes : $\frac{1}{mg^{4}}$ X $mg^{4}$ = $1$

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.