Images 2X 3Y 4X 2Y

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2x 3y 4x 2y. 2y+x=12. 12x+y^2-12y-x^2. X 2 +2x+7 −12 −1= x 2 +2x 3 .. (2x-3y)^2+(4x+2y)^2.
2y+x=12. 12x+y^2-12y-x^2. X 2 +2x+7 −12 −1= x 2 +2x 3 .. (2x-3y)^2+(4x+2y)^2.

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