Question

find the value of k in x^2 - 4x+k=0 has coincident roots​

Answer 1

Answer: k should be equal to 4

Step-by-step explanation:

Since it is a quadratic equation so Drisminiant must be equal to 0

So, D=0

b^2-4ac = 0

Putting the values a=1 b=4 c=k

We get

4^2-4×1×k = 0

16= 4k

k=16÷4= 4

Therefore, k must be equal to 4

Answer 2

Answer:

the answer is k=4

Step-by-step explanation:

I think the solution will help