It's been a few months since doing any integration, need a helping hand.

Trying to solve this by substitution.

If i let u=x-6 than my integral becomes

$\displaystyle

\int {xu^{ - 1} dx}

$

with du = 1 dx

and so

$\displaystyle

\int {xu^{ - 1} du}

$

but i don't think this really helps me.