...Hello,

I have a couple of function problems that I have the answers to, but the steps shown in the book are confusing the heck out of me. Perhaps someone may be able to explain it a little more clearer.

For the first one, it is asking me to find: (f+g)(x) and (f+g)(5) and apply them to:

f(x)=3x+1, g(x)=2x-6

(f+g)(x) = f(x) + g(x) = (3x+1) + (2x-6) = 5x-5

(f+g)(5) = 5(5)-5 = 20

Also, to these:

f(x)=x-5, g(x) =3x^2

you try this one ...