Question

The value of k for which the quadratic equation x ( x -4 ) + k = 0 has equal roots is

1 point

K =-4

K = 16

K =4

K =-16


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Answer 1

Answer:

K=4

Step-by-step explanation:

x(x-4)+k=0

x2-4x+k=0

a=1,b=-4,c=0

b2-4ac=0 (nature of roots)

(-4)²-4(1)(k)=0

16-4k=0

16=4k

k=16/4

k=4