Question

find the values
of 'k for which the quadratic equation 2x² _KX+K=0
has qual
roots.​

Answer 1

Answer:

For equal roots, the discriminant must be zero.  

i.e., D = b² - 4ac = 0

⇒ (k)² - 4(2)(k) = 0

⇒ k² - 8k = 0

⇒ k(k - 8) = 0

∴ k = 0 or 8

Hence, the required values of k are 0 and 8.