Exercise calculus.differentiation.quotient

Description
Use the quotient-rule to find the derivative of a polynomial. Only remove parentheses in the numerator.

Derivation

Final term is not finished

((x-2)*(D(x) x+D(x) 1)-(x+1)*D(x) (x-2))/(x-2)^2

⇒ calculus.differentiation.deriv-of-poly

((x-2)*(1+D(x) 1)-(x+1)*D(x) (x-2))/(x-2)^2

⇒ calculus.differentiation.deriv-of-poly

(x-2-(x+1)*D(x) (x-2))/(x-2)^2