diketahui fungsi f:R -> R dan fungsi g:R

(g o f) (x) = g(x - 1)

(g o f) (x) = (x - 1)² + 2(x - 1) - 3

(g o f) (x) = x² - 2x + 1 + 2x - 2 - 3

(g o f) (x) = x² - 4 → Opsi A