Q. 1 A3.9( 42 Votes )

# Find the zeroes of the following quadratic polynomials and verify the relationship between the zeroes and the coefficients.x2 – 2x – 8

p(x) = 0

x2 – 2x – 8 = 0

x2 + 2x – 4x – 8 = 0

x(x + 2) – 4(x + 2) = 0

(x + 2)(x – 4) = 0

x = -2 and x = 4

Hence, -2 and 4 are zeroes of the polynomial x2 – 2x – 8.

Now,

Sum of zeroes = -2 + 4

Sum of zeroes = 2   Product of zeroes = -2 × 4

Product of zeroes = -8   Rate this question :

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