F(x)=x+3 dan g(x)=2x+1 .tentukan fog dan gof

fog = f(g(x))
(2x+1) +3 =
2x+4

gof = g(f(x))
= 2(x+3)+1
= 2x+6+1
= 7

maaf kalau salah

(f o g)(x) = f ( g(x) )
= (2x+1) + 3
= 2x+4

(g o f)(x) = g ( f (x) )
= g (x+3)
= 2 (x+3) +1
= 2x+6+1
= 2x+7