$f(x)=x^{2}-7$ And $g(x)=2 x+2 ;(f-g)(3)$
A) -5
B) -1
C) -8
D) -6

$f(x) =x^{2}-7$ and $g(x) =2 x+2 ;(f-g) (3)$ .

A) -5
B) -1
C) -8
D) -6