Question 156888
{{{((2x-4)/(x^2+x-6))*((x+3)/(x+1))}}}
={{{((2(x-2))/((x+3)(x-2)))*((x+3)/(x+1))}}}
={{{(2(x-2)(x+3))/((x+3)(x-2)(x+1))}}}
={{{(2cross((x-2))cross((x+3)))/(cross((x+3))cross((x-2))(x+1))}}}
={{{2/(x+1)}}}