diketahui fungsi f(x) = 2x+3 dan g(x) = x2+x-2.nilai (gof)(1/2)

= (2x+3)^2 + (2x+3) - 2
= 2x^2 + 12x + 9 + 2x + 3 - 2
= 2x^2 + 14x + 10

= 2(1/2)^2 + 14(1/2) + 10
= 2(1/4) + 17
= 1/2 + 17
= 17,5