Question

20. The quadratic equation 2x^2-√5x+1=0 has​

Answer 1

${\huge{\boxed{\mathfrak{\pink{your \: answer}}}}}$

Given equation is 2x

2

−

5

x+1=0

On comparing with ax

2

+bx+c=0 we get

a=2,b=−

5

and c=1

D=b

2

−4ac

=(−

5

)

2

−4×2×1=5−8

∴ Discriminant =−3<0

Since, discriminant is negative ∴ quadratic equation 2x

2

−

5

x+1=0 has no real roots . i.e, imaginary roots.

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