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Use the Discriminant to describe the roots of each equation. Then select the best description.

x^2-5x+7=0

A.) Double Root
B.) Real and Rational Roots
C.) Real and Irrational Roots
D.) Non-real Roots

Respuesta :

I think the answer would be D
bcalle
b^2 -4ac is the discriminant
5^2 -4*1*7
25-28= -3
Since the discriminant is negative the answer will be D non real roots.

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