Add x² + 3xy -3y² + (-3x²)+ xy + 2y² + 2x² - 3xy y²
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Step-by-step explanation:
x² + 3xy -3y² + (-3x²)+ xy + 2y² + 2x² - 3xy y²
x² - 3x² + 2x² + 3xy + xy - 3y² + 2y² - 3xy3
2x² + 4xy - y² - 3xy3
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