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प्रश्न
Evaluate : (5x + 8y) (3x + 5y)
योग
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उत्तर
(5x + 8y) (3x + 5y)
= 5x (3x + 5y) + 8y (3x+ 5y)
= 15x2 + 25xy + 24xy + 40y2
= 15x2 + 49xy + 40y2
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Product of Sum and Difference of Two Terms
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