Question

2
3. if the equation x2 - 4x + k = 0 has equal roots then
(a) k=-4 (b)k=4 (c)k=0 (d)k=-2​

Answer 1

Answer:

The answer is below

Step-by-step explanation:

Equal roots means (x-2)(x-2)=0

Hence the value of k = 4 because-2×-2= 4 and -2-2 = -4 ( the coefficient of x) we are so the value for k is 4.