Question

if the sum of zeroes of the polynomial 5x^2+kx+8 is 2 then the value of k​

Answer 1

Step-by-step explanation:

$a = 5 \\ b = k \\ c = 8 \\ \alpha + \beta = \frac{ - b}{a} \\ = > 2 = \frac{ - k}{5} \\ = > 2 \times 5 = - k \\ = > k = - 10 \: \: ans.$