when is (f-g)(x) if f(x)=2x^2-5 and g(x)=3x+4 then simplify answer
(f-g)(x) is when f(x) is subtracted by g(x):
(f-g)(x) = f(x) - g(x)
(f-g)(x) = (2x^2 - 5) - (3x + 4)
(f-g)(x) = 2x^2 - 5 - 3x - 4
(f-g)(x) = 2x^2 - 3x - 9
Therefore, (f-g)(x) = 2x^2 - 3x - 9.