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प्रश्न
factorise: 5 + 3a - 14a2
बेरीज
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उत्तर
5 + 3a - 14a2
5 + 10a - 7a - 14a2
= 5(1 + 2a) - 7a (1 + 2a)
= (1 + 2a) (5 - 7a)
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Factorisation by Grouping
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