Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

Published by Pearson
ISBN 10: 0-32184-874-8
ISBN 13: 978-0-32184-874-1

Chapter 12 - Exponential Functions and Logarithmic Functions - 12.6 Solving Exponential Equations and Logarithmic Equations - 12.6 Exercise Set - Page 825: 52

Answer

No solution.

Work Step by Step

First, the solutions must satisfy $\left\{\begin{array}{l} x+1\gt 0\\ x\gt 0 \end{array}\right.\quad \Rightarrow x\gt 0\qquad (*)$ in order for the equation to be defined. On the LHS, apply $\quad\displaystyle \log_{a}\frac{M}{N}=\log_{a}M-\log_{a}N$ On the RHS, apply$\quad \log 10^{0}=0$ $\displaystyle \log(\frac{x+1}{x})=\log 1$ ... apply the principle of logarithmic equality $\displaystyle \frac{x+1}{x}=1\qquad $... multiply with $x$ $x+1=x\qquad $ ... subtract x $1=0$ No solution.
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