9514 1404 393
Answer:
48
Step-by-step explanation:
Evaluate each of the functions by putting the number where x is.
[tex]g(x)=x^2-4\\\\g(-7)=(-7)^2-4=49-4\\\\\boxed{g(-7)=45}\\\\f(x)=x+4\\\\f(-7)=-7+4\\\\\boxed{f(-7)=-3}[/tex]
Then the difference is ...
g(-7) -f(-7) = 45 -(-3) = 45 +3 = 48
