Question

find the value of K do that the quadratic equation X^2-4KX+K=0 has equal roots​

Answer 1

Answer:

We know that quadratic equation ax2 + bx + c = 0 has equal roots if D = b2 – 4ac = 0. Therefore, given quadratic equation x2 – 4kx + k = 0 has equal roots if D = 0. ⇒ k = 0 or k = 14 .

Step-by-step explanation:

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Answer 2

Answer:

Given the quadratic equation x

2

−4kx+k=0 has equal roots

Step-by-step explanation:

For the quadratic equation to has equal roots , discriminant should be zero

⟹(−4k)

2

−4(1)(k)=0

⟹16k

2

−4k=0

⟹4k(4k−1)=0

⟹k=0,

4

1

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