1. The problem statement, all variables and given/known data I have a differential equation of the form: dA/dx = ab + kA and I need to solve it 2. Relevant equations 3. The attempt at a solution I've started it by moving the right hand side of the equation to the bottom of the left hand side and the bottom of the left to the right. I can recognise that this will probably take the form of an exponential in the final answer, but I can't see how you get to that as the bottom of the l.h.s isn't a simple function of A. How do I go about solving this kind of DE? Is it the same as if it didnt have the constant terms in it?