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प्रश्न
factorise: x2 + 4x + 3
योग
उत्तर
x2 + 4x + 3
= x2 + 3x + x + 3
= x(x + 3) + 1 (x + 3)
= (x + 3) (x + 1)
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Factorisation by Grouping
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