Integral of x / ((a-x)^2+b^2)^2 ?

[mmm0036]

Integral of x / ((a-x)^2+b^2)^2 ?

Homework Statement

Find the integral of

x / [(a-x)^2+b^2]^2

Homework Equations

None really... integration by parts or Trigonometry substitution maybe:

The Attempt at a Solution

I tried but I didn't get solution.

 

[jhae2.718]

Can you show us some of your work?