Question 976482
(f+g)x=
x-2 +x^2 +2= x^2 +x  domain is all reals.

fg(x)= (x-2) (x^2)=x^3-2x^2  domain is all reals.

(f/g) x= (x-2)/x^2, and that cannot be simplified.  Domain is all reals.