If 3 is a zero of the polynomial 2s2 + x + k, find the value of k.
It is given in the question that,
One of the zero of the polynomial 2x2 + x + k is 3
∴ It will satisfy the above polynomial
Now, we have
2 (3)2 + 3 + k = 0
21 + k = 0
k = - 21