Question

find the value of k for quadratic equation X square + 6 X + k is equals to zero if it has equal roots​

Answer 1

Answer:

a= 1

b=6

c=k

for equal root, we know that

b^2- 4ac =0

6^2 - 4×1×k= 0

36-4k =0

4k = 36

k = 9 answer