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

⇒ calculus.differentiation.deriv-of-poly

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

⇒ calculus.differentiation.deriv-of-poly

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

⇒ calculus.differentiation.deriv-of-poly

2/(x-3)^2