Question

If 6x2 + 2kx+k=0 has no solution, then the value of k will satisfy:
k<6
ock <6
k > 6
k>-6​

Answer 1

Step-by-step explanation:

The condition for a quadratic equation ax

2

+bx+c=0 to have equal roots, is

b

2

−4ac=0

For the given equation kx

2

−6x−2=0

b

2

−4ac=(−6)

2

−4k(−2)=0

36+8k=0

8k=−36

k=−

8

36

=−

2

9

Answer 2

Step-by-step explanation:

b^2-4ac>0 ; 4k^2-4×6×k>0 ; k>6