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प्रश्न
Factorise the following by splitting the middle term:
3x2 + 19x - 14
योग
उत्तर
3x2 + 19x - 14
= 3x2 + 21x - 2x - 14
= 3x(x + 7) - 2(x + 7)
= (x + 7)(3x - 2).
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