Consider the indefinite integral ${\displaystyle \underset{\phantom{}}{\overset{\phantom{}}{}}}\frac{(ln(z){)}^4}{z}dz$ :

This can be transformed into a basic integral by letting

$u=,$ and

$du=,dz$

Performing the substitution yields the integral

${\displaystyle \underset{\phantom{}}{\overset{\phantom{}}{}}}du$