Chapter 5 - Logarithmic, Exponential, and Other Transcendental Functions - 5.1 Exercises - Page 325: 29

$\displaystyle \ln\frac{x-2}{x+2}$

See Th.5.2. Property $1$ : $\ln(1)=0$ Property $2$ : $\ln(ab)=\ln a + \ln b$ Property $3$ : $\ln(a^{n})=n\cdot\ln a $ Property 4 : $\displaystyle \ln(\frac{a}{b})=\ln a - \ln b$ -------------- $\ln(x-2)-\ln(x+2)$= ... property $4$...$=\displaystyle \ln\frac{x-2}{x+2}$