I have the integral of 1/(x-1)^2(x+1)^2
This separates to A/(x-1) + B/(x-1)^2 + C/(x+1) + D/(x+1)^2
Well, going right to where I am with it I have:
A(4x-4) + B(x^2+2x+1) + C(x^3-x^2-x+1)+D(x^2-2x+1)
The instructor very briefly demonstrated using RREF on problems that got as big as these. Unfortunately I have a TI-89, not an 84. By the time I figured out how to open my matrix editor the right way he was done.
What do I need to do to tackle this?
Also, what's the 'other' way?