Question

find the value of k for which the equation 4x^2+4xk+4=0 has equal roots

Answer 1

Answer:

k = +2 or -2

Step-by-step explanation:

For equal roots ,

B² - 4AC = 0

(4k)² - 4(4)(4) = 0

16 k² = 64

k²= 4

k = +2 or k = - 2

Answered by Gauthmath