(xy-3x²)-(-2xy-x²)+(-2x²-3)-(-5+xy)

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(xy-3x²)-(-2xy-x²)+(-2x²-3)-(-5+xy)

(xy-3x²)-(-2xy-x²)+(-2x²-3)-(-5+xy)
(xy-3x²)-(-2xy-x²)+(-2x²-3)-(-5+xy)

(xy-3x²)-(-2xy-x²)+(-2x²-3)-(-5+xy)