and What is Show all of your steps and write your finial answer in factored form.

F (x) = 9x^3 + 2x^2 - 5x + 4

g (x) = 5x^3 - 7x + 4

f (x) - g (x)

= (9x^3 + 2x^2 - 5x + 4) - (5x^3 - 7x + 4)

= 9x^3 + 2x^2 - 5x + 4 - 5x^3 + 7x - 4

= (9x^3 - 5x^3) + 2x^2 + (7x - 5x) + (4-4) (combine like terms)

= 4x^3 + 2x^2 + 2x

= 2x * (2x^2 + x + 1)

The final answer is 2x * (2x^2 + x + 1).