Question

Answer real fast...​

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Answer:

4

Step-by-step explanation:

The given quadric equation is

x^2 + 4x + k

Then find the value of k.

The given quadric equation is

x^2 + 4x + k = 0

Then find the value of k.

Here,

a =1,b = 4 and,c = k

As we know that

D = b2-4ac Putting the value of a = 1,b = 4 and,c =k

= (4)^2-4*1*kA

= 16-4k

The given equation are perfect square,

if D = 0

14-4k = 0

4k = 16

k = 4

Therefore, the value of

value of k=4