f(x)=3^x+10x and g(x)=4x-2 find (f+g)(x)
I believe this means we add the two functions and simplify:
3^x + 10x + 4x - 2 --- add the only two "like" terms, 10x and 4x. We can't do anything about 3^x or 2, because there's nothing else like them in the equation.
3^x + 14x - 2