algebra functions.

Question

f(x)=x²−4 and g(x)=x+2

 

Find (f−g)(x). Simplify your answer

Answer 1

I think all you have to do for this question is subtract the two functions.

(f-g)(x) = f(x) - g(x) = x^2-4 - (x+2) = x^2-4 -x -2 = x^2-x-6.