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-3)*D(x) (-2)+2*D(x) x)/(x-3)^2

⇒ calculus.differentiation.deriv-of-poly

((x-3)*D(x) (-2)+2)/(x-3)^2