Intermediate Algebra (12th Edition)

Published by Pearson
ISBN 10: 0321969359
ISBN 13: 978-0-32196-935-4

Chapter 9 - Section 9.4 - Properties of Logarithms - 9.4 Exercises: 12

Answer

4

Work Step by Step

Based on the special properties of logarithms, we know that $log_{b}b^{r}=r$ (where $b$ is a positive real number, $b\ne1$, and $r$ is any real number). Therefore, $log_{3}9^{2}=4$, because $9^{2}=81=3^{4}$.
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