Question

2) What is the value of K, if the roots of x2+kx+k=0 are real and equal
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Answer 1

Answer:-

If the roots are real and equal the b² - 4ac = 0 is the discriminant.

a = 1, b = k, c = k

k² - 4 x 1 x k = 0

k² -4k = 0

k² = 4k

k x k = 4k

k = 4

Answer 2

Answer:

Therefore, k = 0 or k = 4