Question

For what value of k the kx^2-5x+k=0 has real and equal roots

Answer 1

Answer:

5/2 or -5/2

Step-by-step explanation:

kx^2 - 5x + k = 0

According the quadratic formula,

if this equation has real and equal roots, then (-5)^2 - 4(k)(k) = 0

k^2 = 25/4 = (5/2)^2

Therefore, k = 5/2 or -5/2