Question

if the sum of zeroes of the quadratic polynomial 3

2 − + 6 is 3, then find

the value of k.​

Answer 1

Explanation:

$Let, \: \alpha and \: \beta \: be \: the \: zeroes$

Given :-

• sum of zeroes = 3

To find :-

• value of K

We know that,

$\alpha + \beta = \frac{ - b}{a}$

$3 = \frac{ - ( - k)}{3}$

$k = 3 \times 3$

$\boxed{ \bold{k = 9}}$

Hence the value of K is 9