Question

If the solution of quadratic equation xsqaure + 6x +k=0 is 4, then k =
(-20, -40,40)​

Answer 1

Answer:

there x=4

so,

x²+6x+k=0

4²+6×4+k=0

16+24+k=0

40+k=0

k=0-40

k=-40

I hope it help you..

Answer 2

Answer:

Hope it's helpful to you.