If the sum of the zeroes of the quadratic polynomial 3x ^{ 2 } – kx + 6 is 3, then find the value of k.
CBSE Class 10 Sample Paper for 2021 Boards - Maths Standard
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CBSE Class 10 Sample Paper for 2021 Boards - Maths Standard
Last updated at Oct. 22, 2020 by Teachoo
Question 2 If the sum of the zeroes of the quadratic polynomial 3x2 – kx + 6 is 3, then find the value of k. For Polynomial 3x2 – kx + 6 ∴ a = 3, b = −k, c = 6 Now, Sum of Zeroes = (−𝑏)/𝑎 3 = (−(−𝒌))/𝟑 3 × 3 = k k = 9