Find the zeros of the following quadratic polynomials and verify the relationship between the zeros and the coefficients:

5x2 – 4 – 8x

Let f(x) = 5x2 - 4 – 8x

Put f(x) = 0


5x2 - 8x - 4 = 0


5x2 - 10x + 2x - 4 = 0


5x(x - 2) + 2(x - 2) = 0


(5x + 2) (x - 2) = 0



Now, sum of zeroes == =


Product of zeroes


Hence, relationship verified.


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