# Chapter 5 - Exponential and Logarithmic Functions - 5.5 Properties of Logarithms - 5.5 Assess Your Understanding - Page 305: 4

$\log _{a}\left( MN\right) =\log _{a}M+\log _{a}N$

#### Work Step by Step

From the properties of logarithms we get $\log _{a}\left( MN\right) =\log _{a}M+\log _{a}N$

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