Exercise algebra.manipulation.rational.simplify

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

Derivation

Final term is not finished

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

⇒ algebra.equations.linear.distr-times

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

⇒ algebra.equations.linear.merge

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