Let f(x)=x^2+xf(x)=x2+x. Find \frac{f(x) - f(a)}{x-a},x−af(x)−f(a)​, if x\neq a.x​=a. Simplify your answer if possible. I dont know how to start this it seems unsolvable

53928assignment
Given is a function f(x) =
We are to find the limit as x tends to a of
Since x tends to a, we get x = a+h where h is very small either positive or negative
Then we get the above expression as
=
Hence we get answer as 2a+1 when x ≠a
When x =a, this becomes derivative of f(x)...