Question

The roots of the equation 2x2

- 4x + k = 0 are equal ,then the value of k is.

(i) 2 (ii) - 4 (iii) -2 (iv) none of the​

Answer 1

Step-by-step explanation:

D=0

b^2-4ac=0

(-4)^2-4(2)(k)=0

16-8k=0

k=2

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