If I have I want to integrate
(a) 1/(2 + 3 x + x^2)
I know that by algorithm you can write this as,
(b) 1/(1 + x) - 1/(2 + x)
but are that a command for matematica so create separate fractions?
to go from (b) to (a)
it is called Apart to go "back" use Simplify