Answers

  • Brainly User
2016-03-16T17:04:16+05:30
Here a=1
b=-4
c=k
x²-4x+k=0 has DISTINCT REAL ROOTS

b²-4ac>0
(-4)^2 - 4(1)(k)>0
16-4k>0
4k<16{when minus sign change in both side then sign convert}
k<4
So the equation has distinct real roots for all values of k less than 4




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hey actually this is a model question paper in my school
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