Question

find the value of k for which the equation x^2+k(2x+k-1)+2=0

Answer 1

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Answer 2

x²+2kx+k²-k+2=0
from the above equation... we can find discriminant D

now ,
D = b²-4ac
D= (2k)²-4(k²-k+2)
D=4k-8


Now .....take D=O
then ,
4k-8=0
k=2

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