Question 843549
{{{(x+3)(x-4) - 2(x-3)^2 =-2x(x-3)+(x-18)}}}
{{{x^2-x-12-2(x^2-6x+9)=-2x^2+6x+x-18}}}
{{{x^2-x-12-2x^2+12x-18=-2x^2+7x-18}}}
{{{x^2-x-12+12x=7x}}}
{{{x^2-4x-12=0}}}
{{{(x-6)(x+2)=0}}}
Two solutions:
{{{x-6=0}}}
{{{x=6}}}
and
{{{x+2=0}}}
{{{x=-2}}}