f(x)=p+6x,g(x)=5x+8,(fog)(x)=30x+50 berapa nilai p

(fog)(x) = f { g(x) }
f (5x + 8)
p + 6(5x + 8) = 30x + 50
p + 30x + 48 = 30x + 50
p = 30x -30x +50 - 48
p = 2

Bab Fungsi Komposisi
Matematika SMA Kelas X
 
(fog) (x) = 30x + 50
f(5x + 8) = 30x + 50
p + 6 (5x + 8) = 30x + 50
p + 30x + 48 = 30x + 50
p = 30x - 30x + 50 - 48
p = 2