Question 199815
Assume the problem is:
{{{((x-1))/((9x^2+12x+4))}}} - {{{((x+2))/((3x^2-x-2))}}} = {{{((x-1))/((3x+2)(3x+2))}}} - {{{((x+2))/((3x+2)(x-1)))}}} = 
{{{((x-1)(x-1)-(3x+2)(x+2))/((3x+2)(3x+2)(x-1))}}} = {{{((x^2-2x+1)-(3x^2+8x+4))/((3x+2)(3x+2)(x-1))}}} = {{{((x^2-2x+1-3x^2-8x-4))/((3x+2)(3x+2)(x-1))}}} = {{{((-2x^2-10x-3))/((3x+2)(3x+2)(x-1))}}}