Question

if x=3 is one root of the quardatic equation x2 -2kx-6=0 then find the value of k

Answer 1

Hey........ ...

Here is your answer.....

Answer 2

It is given that x=3 is the root of the equation x2-2kx-6=0
So by putting the value of x we get
(3)2-6k-6=0
. 9-6k-6=0
. 6k=3=k=3/6=1/2