diketahui f (x)=3×-4 dan g (×)=2×+a.jika (gof)=(fogl.tentukan nilai a

Bab Fungsi Komposisi
Matematika SMA Kelas X

(gof) (x) = (fog) (x) 
(g(3x - 4)) = f(2x + a)
2 (3x - 4) + a = 3 (2x + a) - 4
6x - 8 + a = 6x + 3a - 4
6x - 6x - 8 + 4 = 3a - a
-4 = 2a
a = -2