Question

Find \(\max(A,B,C,D)\) (the biggest number out of A,B,C, and D) in the partial fractions expansion of
\(12\frac{x^3+4}{(x^2-1)(x^2+3x+2)} = \frac{A}{x-1} + \frac{B}{x+2} + \frac{C}{x+1} + \frac{D}{(x+1)^2}.\)

Answer 1

Are you given the expansion or were you supposed to find it?