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)*6*x^2-(1-2*x^3)*(D(x) x+D(x) 1))/(x+1)^2

⇒ calculus.differentiation.deriv-of-poly

(-(x+1)*6*x^2-(1-2*x^3)*(1+D(x) 1))/(x+1)^2

⇒ calculus.differentiation.deriv-of-poly

(-(x+1)*6*x^2-1+2*x^3)/(x+1)^2