合并同类项 2x²y-3x²y+5x²y

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合并同类项2x²y-3x²y+5x²y合并同类项2x²y-3x²y+5x²y合并同类项2x²y-3x²y+5x²

合并同类项 2x²y-3x²y+5x²y
合并同类项 2x²y-3x²y+5x²y