CBSE 10th Class Mathematics
Past year question paper
Year 2020
SET 1, Code Number – 30/5/1
Question Number – 19 [a]
Quadratic Polynomial
sum and product of zeroes
Deepak BoraNewbie
Form a quadratic polynomial, the sum and product of whose zeroes are (-3) and 2 respectively.
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sum of zeroes = -3
product of zeroes = 2
We know,
p(x) = x² – (sum of zeroes)x + (product of zeroes)
p(x) = x² – (-3)x + (2)
p(x) = x² + 3x + 2
quadratic polynomial is k[x² + 3x + 2]