Question 914840
{{{abs(A)= (x+2y)((x+7y)(x+6y)-(x+5y)(x+8y)) + (x+6y)((x+5y)(x+4y)-(x+3y)(x+6y)) + (x+4y)((x+3y)(x+8y)-(x+4y)(x+7y)) }}}
{{{abs(A)=(x+2y)(x^2+13xy+42y^2-(x^2+13xy+40y^2))+(x+6y)(x^2+9xy+20y^2-(x^2+9xy+18y^2))+(x+4y)(x^2+11xy+24y^2-(x^2+11xy+28y^2))}}}
{{{abs(A)= (x+2y)(2y^2)+(x+6y)(2y^2)+(x+4y)(-4y^2) }}}
{{{abs(A)= (2xy^2+4y^3)+ (2xy^2+12y^3) +(-4xy^2-16y^3) }}}
{{{abs(A)= (2xy^2+2xy^2-4xy^2)+(4y^3+12y^3-16y^3)}}}
{{{abs(A)=0}}}