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प्रश्न
Find the sum of: 4x2+ 8xy – 2y2 and 8xy – 5y2 + x2
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उत्तर
4x2+ 8xy – 2y2 and 8xy – 5y2 + x2
4x2+ 8xy – 2y2 + 8xy – 5y2 + x2
= 4x2 + x2 + 8xy + 8xy - 2y2 - 5y2
= 5x2 + 16xy - 7y2
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