Question

if the two roots of quadratic equation x^-4kx+8 is equal then find the value of k

Answer 1

may this will help you

Answer 2

Since the roots are equal,

Discriminent = 0

=> b^2 - 4*a*c = 0

=> (-4k)^2 - 4(1)(8) = 0

=> 16k^2 - 32 = 0

=> k^2 - 2= 0

=> k^2 = 2

k = + root2 and - root2