Images Y X 2 4X

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Y x 2 4x. 2x-2y/x^2-y^2. Y=x2-2x+4. X Y 2 X 2y 4. (X^2+Y^2)=A^2(X^4+Y^4).
2x-2y/x^2-y^2. Y=x2-2x+4. X Y 2 X 2y 4. (X^2+Y^2)=A^2(X^4+Y^4).

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