Free quadratic equation solver to solve a quadratic equation. Instant results in your browser — no signup.
Also known as: Solve a quadratic equation, quadratic equation calculator, quadratic formula, solve ax2+bx+c, roots calculator, Find quadratic discriminant, Solve quadratic inequality, solve a quadratic equation calculator
Results update when you click Solve.
Real roots
x = 3.0000, x = 2.0000
Δ = 1.0000
Steps
| Step | Detail |
|---|---|
| 1 | a=1.0000, b=-5.0000, c=6.0000 |
| 2 | Δ = 1.0000 |
| 3 | x = (−b ± √Δ) / 2a |
Free quadratic equation solver to solve a quadratic equation. Instant results in your browser — no signup. x = (−b ± √(b² − 4ac)) / 2a.
x = (−b ± √(b² − 4ac)) / 2a.
x² − 5x + 6 = 0 → x = 2, 3.
See the equation-solver tool for a quick parabola sketch.