Answer:
D. 3x - 3
Step-by-step explanation:
To find (f-g)(x) you have to subtract each fuction
(f-g)(x) = f(x) - g(x)
(f-g)(x) = 5x -2 - (2x+1)
(f-g)(x) = 5x -2 -2x -1
(f-g)(x) = 3x -3
3x - 3
this can be written as
f(x) - g(x)
so since we know what f(x) and g (x) are equal to :
5x - 2 - 2x - 1 = 3x -3
