Answer
$ \ln \left ( \frac {x^4y^7}{ z^3} \right )$.
Work Step by Step
The given expression is
$= 4\ln x+7\ln y-3 \ln z$
Use power rule.
$= \ln x^4+\ln y^7- \ln z^3$
Use product rule.
$= \ln (x^4y^7)- \ln z^3$
Use quotient rule.
$= \ln \left ( \frac {x^4y^7}{ z^3} \right )$.
