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If that expression is less than zero, the equation has:
AOne real root
BNo real roots
CTwo real roots
DTen real roots
Answer & Solution
Correct answer: B. No real roots
1. A negative number has no real square root.
2. The formula then gives nothing real.
3. There are no real roots.
_Source: NCERT Class 10 Mathematics, Chapter 4, Quadratic Equations._
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