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Polynomials — Maths STD 9 — Question

Gujarat BoardEnglish MediumSTD 9MathsPolynomials1 Mark
Question
Write the coefficient of x2 in the following:
(x - 1)(3x - 4)
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Answer

Let p(x) = (x - 1)(3x - 4)
= 3x2 - 7x + 4
= 3x2 - 4x - 3x + 4
Hence, the cofficient of x2 in p(x) is 3.

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