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If the discriminant of a quadratic equation is negative, what can be concluded about its roots?
AThe equation has two distinct real roots
BThe equation has two equal real roots
CThe equation has no real roots
DThe equation has exactly one real root
Answer & Solution
Correct answer: C. The equation has no real roots
If $b^2-4ac<0$, then the square root term in the quadratic formula is not a real number. Therefore, the quadratic equation has no real roots.
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