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प्रश्न
factorise: a2 + 5a + 6
बेरीज
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उत्तर
a2 + 5a + 6
= a2 + 2a + 3a + 6
= a(a + 2) + 3(a + 2)
= (a + 2) (a + 3)
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Factorisation by Grouping
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