f(x)=2x²-3x+1 dan g(x)=x-1 dan (f o g)(x)=0 tentukan nilai x ?

Bab Fungsi
Matematika SMA Kelas XI

(fog) (x) = 0
2(x - 1)² - 3(x - 1) + 1 = 0
2x² - 4x + 2 - 3x + 3 + 1 = 0
2x² - 7x + 6 = 0
(2x - 3) (x - 2) = 0
2x - 3 = 0
x = 3/2

atau
x - 2 = 0
x = 2