The discriminant of $ax^2 + bx + c = 0$ is $D = b^2 - 4ac$. For two distinct real roots, $D > 0$. If $D = 0$, roots are equal. If $D < 0$, roots are complex.
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JEE Main 2025 — Mathematics Algebra
easy
mcq
2025
Official previous-year question
Verified 30 May 2026.
Question
For the quadratic equation $ax^2 + bx + c = 0$ to have two distinct real roots, the discriminant must satisfy:
Options
- A
$b^2 - 4ac = 0$
- B
$b^2 - 4ac < 0$
- C
$b^2 - 4ac > 0$
- D
$b^2 - 4ac \geq 0$
Solution
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