Exercise calculus.differentiation.quotient
Description
Use the quotient-rule to find the derivative of a polynomial. Only remove parentheses in the numerator.
Derivation
((x-3)*D(x) (-2)+2*D(x) (x-3))/(x-3)^2
⇒ calculus.differentiation.deriv-of-poly2*D(x) (x-3)/(x-3)^2
⇒ calculus.differentiation.deriv-of-poly2/(x-3)^2