Answer
$= \ln \frac{7x^{2}}{y^{5}z^{2}} $
Work Step by Step
$= \ln 7 + 2 \ln x + \ln z - 5 \ln y - 3 \ln z$
$= \ln 7 + \ln x^{2} + \ln z - \ln y^{5} - \ln z^{3}$
$= \ln 7x^{2} + \ln z - \ln y^{5} - \ln z^{3}$
$= \ln \frac{7x^{2}z}{y^{5}z^{3}} $
$= \ln \frac{7x^{2}}{y^{5}z^{2}} $
