tentukan (fog)(x) dan (gof)(x). f(x)=x2+2x-3 g(x)=x+2

(fog)(x)= f(g(x))
= F(x+2)
(X+2)²+2(x+2)-3
=X²+4x+4 + 2x+4-3
=X²+6x+5
(gof)(x)= g(f(x))
= G(x²+2x-3)
(X²+2x-3)+2
=X²+2x-1

Maaf kalau salah