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-1)*D(x) 5-5*D(x) x)/(x-1)^2
⇒ calculus.differentiation.deriv-of-poly((x-1)*D(x) 5-5)/(x-1)^2