Question

Question 1.
If the sum of zeroes of the quadratic polynomial 3x2 – kx + 6 is 3, then find the value of k. (2012)​

Answer 1

Step-by-step explanation:

3x2 - kx + 6 ( x = 3 )

3 (3 x3) - k x 3 + 6 = 0

3 x 9 -3k + 6 = 0

27 - 3k + 6 = 0

33 - 3k = 0

- 3k = -33

k = -33 /-3.

k = 11