Exercise calculus.differentiation.quotient

Description
Use the quotient-rule to find the derivative of a polynomial. Only remove parentheses in the numerator.

Derivation

(45*x^4+63*x^2-30*x^4)/(5*x^2+7)^2

⇒ algebra.equations.linear.merge

(15*x^4+63*x^2)/(5*x^2+7)^2