Question

If the sum of the zeros of the polynomial f(x) = 2x³ – 3kx² + 4x – 5 is 6, then the value of k is
A. 2
B. 4
C. – 2
D. – 4

Answer 1

Answer:

answer is 4

option b

I think it helps u

Answer 2

B. 4

Step-by-step explanation:

Given: Polynomial f(x) = 2x³ – 3kx² + 4x – 5

α and β are the zeroes of the polynominial such that α + β = 6

Sum of zeroes = -b/a = -(-3k)/2  

 α + β = 3k/2 = 6

3k = 12

Therefore k = 12/3 = 4

 k = 4

Option B is the answer.