Exercise algebra.manipulation.rational.simplify

Description
simplify a rational expression (with a variable in a divisor)

Derivation

Final term is not finished

(x^2+3*x-4)/((x^2-x)*(x-5))

⇒ algebra.equations.linear.distr-times

(x^2+3*x-4)/(x^3-5*x^2-x^2+5*x)

⇒ algebra.equations.linear.merge

(x^2+3*x-4)/(x^3-6*x^2+5*x)