Question

f(x)=x^2+x and g(x)=2/(x+3)
find value from :
(f-g) (2)

Answer 1

f-g=x^2+x-2/(x+3)=[(x^2+x)*(x-3)-2]/(x-3)=(x^3-2x^2-3x-2)/(x-3)
f-g(2)=(8-8-6-2)/(2-3)=-8/-1=8

Answer 2

how about it... f(x)=x^2+x and g(x)=2/(x+3)
find value from : (f/g) (1)