Question

If f(x) = x 2 + 1 and g(x) = 3x + 1, find f(2) + g(3).

Answer 1

just put the corresponding values in each equations and solve..
as the question says, you gotta put 2 in fx and 3 in gx and add.
tell me if you get stuck, i'll walk you through this. :)

Answer 2

Rewrite \[f(x) = x^2+1\] replacing \(x\) with \((2)\)
Rewrite \[g(x) = 3x+1\] replacing \(x\) with \((3)\)
Evaluate both and add.