jika suatu fungsi f(x)=x+2 dan g(x)=x+5 maka (fog) (x)

(fog)(x) = f(x+5)
= (x+5) + 2
= x + 5 + 2
= x + 7

Maaf yaaa kalau salah, semoga membantu ^_^

==Jawaban==
(fog)(x)
= f(g(x))
= f(x + 5)
= (x + 5) + 2
= x + 7