Can someone run me through using Heaviside cover-up for this decomposition: $$ \frac{2}{(x-2)(x+3)(x+1)^3} $$
I have calculated the decomposition traditionally but can't get consistent answers using Heaviside. Any help appreciated :)
edit: I calculated the answers traditionally to be: $$ \frac{-7}{108(x+1)}+\frac{1}{20(x+3)}+\frac{1}{18(x+1)^2}-\frac{1}{3(x+1)^3}+\frac{2}{135(x-2)} $$