Question

find the first and second derivate of f(x)=x^2 -2x +1/ x+1 and relative max and min

Answer 1

apply quotient rule

the first derivative is:

(x+1)(2x -2) - (2x^2 -2x +1)(1)
---------------------------
(x+1)^2

Answer 2

the second derivative is messier :)