Question

find the value of k for which the quadratic equation is Km(m-2)+6=0 has equal roots

Answer 1

km(m-2) +6 = 0

=> km^2 -2k m + 6 = 0

On comparing given equation with general equation we get ,

a = k

b = -2k

c = 6

For equal roots ,

Discriminant = 0

=> b^2 -4ac = 0

=> ( -2k)^2 -4 ( k)(6) = 0

=> 4 k^2 - 24k = 0

=> 4k^2 = 24k

=> 4k = 24

=> k = 6

Answer 2

Answer:

k=6

hv a nc d.................