Question$\int \frac{\ln ^{2} x+2 \ln x-1}{x} d x$

Studdy Solution
Substitute back $u = \ln x$ into the integrated expression:
$\frac{(\ln x)^3}{3} + (\ln x)^2 - \ln x + C$
The solution to the integral is:
$\boxed{\frac{(\ln x)^3}{3} + (\ln x)^2 - \ln x + C}$