Diketahui f(x)=x+3 dan g(x)=x pangkat 2 +2x-2 hitunglah (gof) (x) dan (gof) (-2)…….

F(x) = x + 3
g(x) = x² + 2x – 2

(gof) (x)
= g(x + 3)
= (x + 3)² + 2(x + 3) – 2
= x² + 6x + 9 + 2x + 6 – 2
= x² + 8x + 13

(gof) (-2)
= (-2)² + 8(-2) + 13
= 4 – 16 + 13
= 1