Question

if x²+2kx+4=0 has roots x=2,then the value k is ​

Answer 1

Answer:

Step-by-step explanation:

2²+4k+4=0

4k=-8

k=-2

Answer 2

hope this helps u

x = 2

x²+2kx+4=0

2²+2*k*2+4 =0

4+4k+4 = 0

8+4k = 0

4k = -8

k = -8/4

k=-2