# Math Help - partial fractions

1. ## partial fractions

why is (x-3)/[(x^2+2x+4)]^2 not able to be expressed in the form, Ax+B/(x^2+2x+4) + Cx+D/[(x^2+2x+4)]^2

2. Originally Posted by tennisplaya999
why is (x-3)/[(x^2+2x+4)]^2 not able to be expressed in the form, Ax+B/(x^2+2x+4) + Cx+D/[(x^2+2x+4)]^2
It's already in that form! A = B = 0. C = 1 and D = -3.