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प्रश्न
factorise: 3a2x - bx + 3a2 - b
योग
उत्तर
3a2x - bx + 3a2 - b
= x(3a2 - b) + 1 (3a2 - b)
= (x + 1)(3a2 - b)
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Factorisation by Grouping
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