Jika f(x):x²-3x+2,g(x):x-1,h(x):3x+1, komposisi fungsi(f×g×h)(x)=

f(x) = x^2 -3x +2, g(x) = x -1 dan h(x) = 3x+1.
fogoh(x) = fog { h(x) }
= fog (3x+1)
= f { g (3x+1)
= f { (3x+1)-1 }
= f ( 3x )
= (3x)^2 -3(3x) +2
= 9x^2-6x +2