Originally Posted by
wyhwang7 Hello, I've been reading the examples in my text over and over and I'm having trouble solving problems with irreducible quadratic factors.
The problem: Find the constants in the partial fraction decomposition
(2x-3)/(x-2)((x^2)+4) = A/(x-2) + (Bx+C)/((x^2)+4)
I solved for A
2x+4 = A((x^2)+4) + (Bx+C)(x-2)
Setting x=2, 8 = 8A + 0
A=1
Then, like in the example in my text, I distributed the equation and grouped by x's
2x + 4 = (x^2) + 4 + B(x^2) - 2Bx + Cx - 2C
0 = (x^2)(1+B) + x(C-2) - 2(B-C)
This is where I am lost. I do not know how to solve for B or C.
Thanks!