Exercise algebra.manipulation.rational.simplify

Description
simplify a rational expression (with a variable in a divisor)

Derivation

Final term is not finished

x*(x^2+3*x+2)/(x^2+4*x+4)

⇒ algebra.equations.linear.distr-times

(x^3+3*x^2+2*x)/(x^2+4*x+4)