Question 31021
{{{(10x^2 - 30x + 20)/(X^2 - 1)}}} factor out the 10
{{{(10(x^2-3x+2))/(x^2-1)}}} factor the top and bottom
{{{(10((x-2)(x-1)))/((x+1)(x-1))}}} cancel out similar terms
{{{(10(x-2))/(x+1)}}} DONE!