Diketahui f(x)=3x-1,g(x)=xkuadrat-2x-3,dan h(x)=2x+1 tentukan (g•h•f)(-3)

(g o h o f) (-3)
langkah 1 cari (g o h) dulu
= x2 -2x -3
= (2x+1)2 -2(2x+1)-3
= 4x2 -1-3
= 4x2-4

langkah 1 cari (g o h) o f (-3)
4(3x - 1)2 - 4
langsung subtitusikan x= -3
= 4(3 (-3) - 1)2 - 4
= 4 (-9-1)2 -4
= 4 (-10)2 - 4
= 4 (100) - 4
= 400-4
= 396

semoga membantu...