Question 803722
{{{((x^5-X^2)/(5x^5-5x))* ((10x^4-10x^2)/(2x^4+2x^3+2x^2))}}}




{{{((x^2(x^3-1))/(5x(x^4-1)))* ((10x^2(x^2-1))/(2x^2(x^2+x+1)))}}}




{{{((x^2((x-1)(x^2+x+1)))/(5x((x^2+1)((x+1)(x-1)))))* ((10x^2((x+1)(x-1)))/(2x^2(x^2+x+1)))}}}

cancel off the same factors


{{{(x(x-1))/(x^2+1)}}}