Question 1046940
{{{(x-7)(x+3)=-9}}}


{{{x^2-7x+3x-21=-9}}}


{{{x^2-4x-21+9=0}}}


{{{x^2-4x-12=0}}}


{{{(x-6)(x+2)=0}}}


{{{system(x=-2,or,x=6)}}}