Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 9 - Review: 74

Answer

$log_{4}(x+5)-2log_{4}x$

Work Step by Step

The quotient property of logarithms tells us that $log_{b}\frac{x}{y}=log_{b}x-log_{b}y$ (where x, y, and, b are positive real numbers and $b\ne1$). Therefore, $log_{4}\frac{x+5}{x^{2}}= log_{4}(x+5)-log_{4}x^{2}$. The power property of logarithms tells us that $log_{b}x^{r}=r log_{b}x$ (where x and b are positive real numbers, $b\ne1$, and r is a real number). Therefore, $ log_{4}(x+5)-log_{4}x^{2}= log_{4}(x+5)-2log_{4}x$.
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