Question

x square + 2 kx + 4 equals to zero has a root 2 then find the value of k​

Answer 1

Answer:

given equation is

x^2+2kx+4=0

put x= 2

(2)^2+2k(2)+4=0

4+4k+4=0

4k+8=0

4k= -8

k=-8/4 =-2

k=-2

Answer 2

Answer:

Here's your answer, dear friend ...