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a = 1
b = 0
c = -10
b2 - 4ac = 40
But I think only equations have discriminants, not polynomials. So if you want a
discriminant, you have to say that x2-10 is equal to something, and if it's equal
to zero, then the above answer is correct.
It is 40.
10
That will depend on the value of 10 which has not been given but in general if the discriminant is less than zero then the quadratic has no real roots
It is: 16-20 = -4 which means that the given quadratic expression has no real roots.
The discriminant of x^2 + 6 - 16 = discriminant of x^2 - 10 is 40.