Discriminant of a quadratic (D = b² − 4ac)
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D = b² − 4ac
What each symbol means
| Symbol | What it stands for |
|---|---|
| D | Discriminant of ax² + bx + c = 0 (a ≠ 0) |
| a,b,c | Real coefficients with a ≠ 0 |
When to use this
For the quadratic equation ax² + bx + c = 0 with real coefficients and a ≠ 0.