Quadratic formula (Shreedharacharya) (x = (−b ± √D) / (2a))
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x = (−b ± √D) / (2a)
What each symbol means
| Symbol | What it stands for |
|---|---|
| D | b² − 4ac |
| a,b,c | Coefficients of ax² + bx + c = 0, a ≠ 0 |
When to use this
Real coefficients; real roots require D ≥ 0.