Ответ:
2xy² + 3xy² + 2x² + 4x + x² + 2x - 3 = (2xy² + 3xy²) + (2x² + x²) + (4x + 2x) - 3 = 5xy² + 3x² + 6x - 3
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Ответ:
2xy² + 3xy² + 2x² + 4x + x² + 2x - 3 = (2xy² + 3xy²) + (2x² + x²) + (4x + 2x) - 3 = 5xy² + 3x² + 6x - 3