Exercise algebra.manipulation.rational.simplify
Description
simplify a rational expression (with a variable in a divisor)
Derivation
(x+1)*4*x/((x+2)*(x+1))-(x+2)*2*x/((x+2)*(x+1))
⇒ algebra.equations.rational.rational-plus((x+1)*4*x-(x+2)*2*x)/((x+2)*(x+1))
⇒ algebra.equations.linear.distr-times(4*x^2+4*x-2*x^2-4*x)/((x+2)*(x+1))
⇒ algebra.equations.linear.merge2*x^2/((x+2)*(x+1))