Exercise algebra.manipulation.rational.simplify
Description
simplify a rational expression (with a variable in a divisor)
Derivation
(x+2)*4/((x+3)*(x+2))-(x+3)*6/((x+3)*(x+2))
⇒ algebra.equations.rational.rational-plus((x+2)*4-(x+3)*6)/((x+3)*(x+2))
⇒ algebra.equations.linear.distr-times(4*x+8-6*x-18)/((x+3)*(x+2))
⇒ algebra.equations.linear.merge(-2*x-10)/((x+3)*(x+2))