Partial fractions HELP

Quote:

Partial Fraction of 3x^4-5x^3+16x^2-28x+4 over (x-1)^2(x^2+4)

3 - 2/(-1 + x)^2 + 1/(-1 + x) + 4/(4 + x^2)

If you reply that you are interested I can show a more detailed derivation.