Question

Given f(x) = x^2+2, find f(a+2) − f(a)

Answer 1

4a+4

Answer 2

f(a+2)=(a+2)^2+2
f(a)=a^2+2

f(a+2)-f(a)=(a+2)^2+2-(a^2+2)

Answer 3

Which one is correct? :(

Answer 4

brusmack just shows how to do it. same answer

Answer 5

THANK YOUUUUUUUUUUUUUUUUUUUUU!