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)
(x-2)*6/(x*(x-3)+2)-(x-1)*3/((x-1)*(x-2))
⇒ algebra.equations.linear.distr-times(x-2)*6/(x^2-3*x+2)-(x-1)*3/((x-1)*(x-2))