diketahui f(x)=x+3dan g(x)=x²-2x+5,maka (g bundaran f)(x)=…

(gof)(x) = (x+3)^2 -2 (x+3) +5
= x^2+6x+9-2x-6+5
= x^2+4x+8

f (x) = x + 3 dan g (x) = x^2 - 2x + 5
g o f (x) = g { f (x) }
= g (x + 3)
= (x + 3)^2 - 2(x + 3) + 5
= x^2 + 6x + 9 - 2x - 6 + 5
= x^2 + 4x + 8