Jika (g ° f )(x) = 4 x^2 + 4x dan g(x) = x^2 - 1 maka f(x-2) adalah …

Komposisi fungsi

g(x)= x² -1
gof(x)= 4x² + 4x
g { f(x)}= 4x² + 4x
f²(x) - 1 = 4x² + 4x
f² (x)= 4x² + 4x + 1 = (2x +1)²
f(x)= 2x +1
f(x-2) = 2(x-2) +1
f(x-2)= 2x - 4 +1
f(x-2) = 2x - 3