## for what value of k quadratic equation kn 2 – kn+1 = o has equal roots​

Question

for what value of
kn 2 – kn+1 = o has equal
roots​

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4 weeks 2021-08-16T15:27:16+00:00 2 Answers 0 views 0

1. For k = 4, the given quadratic equation has equal roots.

Step-by-step explanation:

on Comparing with ax²+bx+c=0

ax²+bx+c=0

a = k, b = -k, c = 1

Now, for the equal roots, we have,

b²-4ac=0

k²-4k=0

k(k-4)=0

k=4

Now, for k =0, it will not be a quadratic equation. Hence, we can discard k =0

Now, for k =0, it will not be a quadratic equation. Hence, we can discard k =0Therefore, for k = 4, the given quadratic equation has equal roots.

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. For k = 4, the given quadratic equation has equal roots.

Step-by-step explanation:

on Comparing with ax²+bx+c=0

ax²+bx+c=0

a = k, b = -k, c = 1

Now, for the equal roots, we have Now, for k =0, it will not be a quadratic equation. Hence, we can discard k =0

Therefore, for k = 4, the given quadratic equation has equal roots.