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Deepak Bora
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Find the zeroes of the following quadratic polynomials and verify the relationship between the zeroes and the coefficients.

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NCERT CHAPTER 2.2

QUESTION NO 2

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  1. Solutions:

    (i) x2–2x –8

    x2– 4x+2x–8 = x(x–4)+2(x–4) = (x-4)(x+2)

    Therefore, zeroes of polynomial equation x2–2x–8 are (4, -2)

    Sum of zeroes = 4–2 = 2 = -(-2)/1 = -(Coefficient of x)/(Coefficient of x2)

    Product of zeroes = 4×(-2) = -8 =-(8)/1 = (Constant term)/(Coefficient of x2)

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