If ‒2 is a zero of the polynomial 3x2 + 4x + 2k then find the value of k.
It is given in the question that,
One of the zero of the polynomial 3x2 + 4x + 2k is - 2
∴ It will satisfy the above polynomial
Now, we have
3 (- 2)2 + 4 (- 2) + 2k = 0
12 - 8 + 2k = 0
4 + 2k = 0
2k = - 4
∴ k = - 2