Images 2X 3Y 4X 2Y

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2x 3y 4x 2y. Y'+XY=X^3y^3. X^2+4xy+4y^4. XY 2y 2x 4 решение. X2+XY+y2.
Y'+XY=X^3y^3. X^2+4xy+4y^4. XY 2y 2x 4 решение. X2+XY+y2.

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