Question

If x=3 is one root of the quadratic equation x2

-2kx-6=0,

then k=___​

Answer 1

Answer:

x²-2kx-6=0

(3)²-2k(3)-6=0

9-6k-6=0

3-6k=0

k=1/2 OK friend

Answer 2

Hey... I think this can be ur answer!!

Polynomial - x2 - 2kx - 6 =0

P (3)=(3)2 - 2(3)k =6

=9 - 6k =6

=-6k =-3

=k =1/2

Hope it helps you dear ☺️☺️