Intermediate Algebra (6th Edition)

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

Chapter 9 - Section 9.6 - Properties of Logarithms - Exercise Set: 28

Answer

$ log_{7}y^{2}z^{6}$

Work Step by Step

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, $2log_{7}y+6log_{7}z= log_{7}y^{2}+log_{7}z^{6}$. The product property of logarithms tells us that $log_{b}xy=log_{b}x+log_{b}y$ (where x, y, and, b are positive real numbers and $b\ne1$). Therefore, $ log_{7}y^{2}+log_{7}z^{6}= log_{7}(y^{2}\times z^{6})= log_{7}y^{2}z^{6}$.
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