Question 625366
{{{((3/x^2)+x)-(((x+4)/x^2)+2x+1))}}}
{{{((3+x(x^2))/x^2)-((x+4+2x(x^2)+1(x^2))/x^2)}}}
{{{((3+x^3)/x^2)-((x+4+2x^3+x^2)/x^2)}}}
{{{(-x^3-x^2-x-1)/x^2}}}
{{{-x-1-((x+1)/x^2)}}}