Answer
$\log_2{3}$
Work Step by Step
Recall:
$$\log_a{b}-\log_a{c}=\log_a{(bc)}$$
Use the rule above to obtain:
\begin{align*}
\log_2{15}-\log_2{5}&=\log_2{\left(\frac{15}{5}\right)}\\\\
&=\log_2{3}
\end{align*}
Algebra 2 Common Core
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133186024
ISBN 13:
978-0-13318-602-4
Chapter 7 - Exponential and Logarithmic Functions - 7-5 Exponential and Logarithmic Equations - Practice and Problem-Solving Exercises - Page 476: 98
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