Hi i am completely stuck trying to integrate the following function.
f(x) = (x + 2)(1 - e^ -x/3).
Do i try and expand the brackets before i start?
I tried doing it as a substitution using 1-e^-x/3 as u and
du = 1/3 e^ -1/3x but that isn't one constant away from the original function when i multiply.
Any help would be brilliant.