Question

 If the roots of the equation x²+6x+k=0 are equal then the value of k 7 8 9 6​

Answer 1

Answer:

9

Step-by-step explanation:

roots of the equal are equal.

${b}^{2} - 4ac = 0$

${6}^{2} - 4 \times 1 \times k = 0$

$36 - 4k = 0$

$- 4k = - 36$

$k = \frac{ - 36}{ - 4}$

$\boxed{k =9}$

Hence option c. is correct one