Question

For what value of k the quadratic equation x²-kx+4 as equal roots​

Answer 1

Answer:

Step-by-step explanation:

D=0

b^2-4ac=0

In this equation,

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

(-k)^2-4×1×4=0

k^2-16=0

k^2=16

k=4 or k=-4.

Answer 2

Refer to above statement.