# Thread: Help Within Partial Integration

1. ## Help Within Partial Integration

∫2x-3/(9+x^2)dx

I don't know why, but this problem is giving me some trouble, can anyone help?

2. Originally Posted by john0513
∫2x-3/(9+x^2)dx

I don't know why, but this problem is giving me some trouble, can anyone help?
Slip it up and consider two different problems

$\int \frac{2x}{x^2 + 9}\,dx - 3 \int \frac{1}{9+x^2}\,dx$

and use a (1) u -substitution and (2) trig substitution