Jika f(x) =2x + 1 dan g(x) = 4 - 2x per x + 2 tentukan (f0g) (x)

fog(x) = 2(4-2x / x+2) + 1
= 8–4x / x+2 + 1
= 8–4x / x+2 + (x+2)/(x+2)
= (8–4x + x + 2) / (x+2)
= (10–3x) / (x+2)