Question 826182
{{{(x^2-9)/(x^2+x-12)*(x^2-16)/(3)}}}
{{{((x^2-9)(x^2-16))/((x^2+x-12)(3))}}}
{{{((x-3)(x+3)(x-4)(x+4))/((x+4)(x-3)(3))}}}
{{{((x+3)(x-4))/((x-3)(3))}}}
{{{(x^2-x-12)/(3x-9)}}}


HOPE that helps O:)