Quadratic equation
Math
Quadratic equation
Which x makes the equation true?
Example values are filled in. Replace them with your own.
Example calculation
The real roots are 2, 1.
x₁
2
x₂
1
These x values make the equation equal zero. Only real roots are shown.
See formula and assumptions
Discriminant D = b² − 4ac. A negative D has no real roots.
- a
- Example: 1. Enter the number only.
- b
- Example: -3. Enter the number only.
- c
- Example: 2. Enter the number only.