find the value of K for which the equation x power2 + K (2 x-K-1) + 2 = 0 has real and equal roots

find the value of K for which the equation x power2 + K (2 x-K-1) + 2

1.	find the value of K for which the equation x power2 + K (2 x-K-1) + 2 = 0 has real and equal roots
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