Exercise algebra.manipulation.rational.simplify
Description
simplify a rational expression (with a variable in a divisor)
Derivation
(x-1)/(x+1)-(x+2)/(x-2)
⇒ algebra.equations.rational.rational-scale(x-2)*(x-1)/((x+1)*(x-2))+(x+1)*(-x-2)/((x+1)*(x-2))
⇒ algebra.equations.rational.rational-plus((x-2)*(x-1)+(x+1)*(-x-2))/((x+1)*(x-2))
⇒ algebra.equations.linear.distr-times(x^2-3*x+2-x^2-3*x-2)/((x+1)*(x-2))
⇒ algebra.equations.linear.merge-6*x/((x+1)*(x-2))