Rumus fungsi (f o g) (x) F(x)=x+5/2 dan g(x)=4x+3/x-1

subtitusikan g(x) kedalam persamaan f(x)
( f o g) (x) = (4x+3/x-1) + 5/2
= 4x + 3/x - 1 + 5/2
= 4x + 3/x + 3/2
= 4x^2 + 3 + 3/2 x
= 8x^2 + 6 + 3x
= 8x^2 + 3x + 6