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प्रश्न
factorise: 4 + y - 14y2
योग
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उत्तर
4 + y - 14y2
= 4 + 8y - 7y - 14y2
= 4 (1 + 2y) - 7y (1 + 2y)
= (1 + 2y)(4 - 7y)
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Factorisation by Grouping
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