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प्रश्न
Factorise.
3x2 + 14x + 15
योग
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उत्तर
3x2 + 14x + 15
= 3x2 + 9x + 5x + 15
= 3x(x + 3) + 5(x + 3)
= (3x + 5)(x + 3)
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