Exercise algebra.manipulation.rational.simplify
Description
simplify a rational expression (with a variable in a divisor)
Derivation
Final term is not finished
(a^3+7*a^2+10*a)/((a+2)*(a-3))
⇒ algebra.equations.linear.distr-times(a^3+7*a^2+10*a)/(a^2-a-6)