Question 302847
{{{x^2(x+1)^3(x-1)}}}
{{{x^2(x+1)(x+1)(x+1)(x-1)}}}
{{{x^2(x^2+2x+1)(x+1)(x-1)}}}
{{{x^2(x^3+2x^2+x+x^2+2x+1)(x-1)}}}
{{{(x^3-x^2)(x^3+3x^2+3x+1)}}}
{{{x^6 + 3x^5 + 3x^4 + x^3 - x^5- 3x^4 - 3x^3 - x^2}}}
{{{x^6 + 2x^5 - 2x^3 - x^2}}}