what is f(x) - g(x) when f(x)=3x-3 and g(x)=x^2-4

Answer 1

I got -x^2 + 2x + 4 - 3
but it was marked wrong

Answer 2

(3x-3) - (x^2-4)

= 3 x - 3 - x^2 + 4

= -x^2 + 3x + 1