1.x²y-³(2x-¹y)-²

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1.x²y-³(2x-¹y)-²1.x²y-³(2x-¹y)-²1.x²y-³(2x-¹y

1.x²y-³(2x-¹y)-²
1.x²y-³(2x-¹y)-²

1.x²y-³(2x-¹y)-²