Respuesta :

gmany

Answer:

D. 3x - 3

Step-by-step explanation:

[tex](f-g)(x)=f(x)-g(x)\\\\f(x)=5x-2,\ g(x)=2x+1\\\\\text{Substitute:}\\\\(f-g)(x)=(5x-2)-(2x+1)\\\\=5x-2-2x-1\qquad\text{combine like terms}\\\\=(5x-2x)+(-2-1)\\\\=3x-3[/tex]