Question 317121
{{{ ((x^2-3x+2)/(x+1))*((3x+3)/(x^2-4))=(((x-1)(x-2))/(x+1))*((3*(x+1))/((x-2)(x+2)))  }}}
{{{ ((x^2-3x+2)/(x+1))*((3x+3)/(x^2-4))=(((x-1)cross((x-2)))/cross((x+1)))*((3*cross((x+1)))/(cross((x-2))(x+2)))  }}}
{{{ ((x^2-3x+2)/(x+1))*((3x+3)/(x^2-4))=(3(x-1))/(x+2)  }}}