solve the partial fraction.x^4+3x-2/(x^2+1)^3(x-4)=(Ax+B)/(x^2+1)+(Cx+D)/(x^2+1)^2+(Ex+F)/(x^2+1)^3+G/(x-4)+H/(x-4)^2.Find the value of ABCDEFGH, plz help

Wow,

before I start, some clarification:
I will assume that you meant:
(x^4+3x-2)/( (x^2+1)^3 (x-4) )

My second concern:

In your break-down your last term is h/(x-4)^2, yet the original denominator showed only (x-4)
Besides that, if the denominator did contain (x-4)^2, then the last term should have been
(Hx + I)/(x-4)^2

Lastly, your School Subject is Math, not
"government secondary school abuja"

I will attempt your problem once you have cleared up those issues.