Exercise algebra.manipulation.rational.simplify
Description
simplify a rational expression (with a variable in a divisor)
Derivation
![](http://ideas.cs.uu.nl/images/external.png)
(a^2-9)/(a^3-3*a^2-a^2+3*a)
⇒ algebra.equations.linear.merge(a^2-9)/(a^3-4*a^2+3*a)
Description
simplify a rational expression (with a variable in a divisor)