Caranya gimana yak?bantuannya buat belajar besok ulangan tolong yak kak

f(×)=×^3-3x
f(2)=2^3-3×2
f(2)=8-6
f(2)=2

g(x)=2x-1
g(2)=2×2-1
g(2)=3

A.(f+g)=
(2+3)=5