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प्रश्न
Write the coefficient of x2 in the following:
(x – 1)(3x – 4)
उत्तर
(x – 1)(3x – 4) = 3x2 – 4x – 3x + 4
= 3x2 – 7x + 4
The coefficient of x2 in the polynomial 3x2 – 7x + 4 = 3.
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