Answer
$\ln\frac{a^{2}-b^{2}}{c^{2}}$
Work Step by Step
$ \ln(a+b)+\ln(a-b)-2\ln c=\ln((a+b)(a-b))-\ln(c^{2})=\ln\frac{a^{2}-b^{2}}{c^{2}}$
College Algebra 7th Edition
by Stewart, James; Redlin, Lothar; Watson, Saleem
Published by
Brooks Cole
ISBN 10:
1305115546
ISBN 13:
978-1-30511-554-5
Chapter 4, Exponential and Logarithmic Functions - Section 4.4 - Laws of Logarithms - 4.4 Exercises - Page 395: 55
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