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+4)*3*x^2-D(x) (x+4)+x^3*D(x) (x+4))/(x+4)^2

⇒ calculus.differentiation.deriv-of-poly

(-(x+4)*3*x^2-D(x) (x+4)+x^3)/(x+4)^2