Question

Calculate the following values:

Answer 1

F(a)=a^2-5a+7

F(a+h)=(a+h)^2-5(a+h)+7
=a^2+2ah+h^2-5a-5h+7

F(a+h)-F(a)=(2ah+h^2)/h


Factor out h, we will have h(2a+h)/h, the answer is 2a+h