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)
-p*(p-5)/(p^2-10*p+25)
⇒ algebra.equations.quadratic.nice-factors-p*(p-5)/(p-5)^2
⇒ algebra.equations.rational.cancel-div, clipboard=[condition == (p /= 5)]-p/(p-5)