Quadratic Equation Solver
Solve ax² + bx + c = 0 and see the discriminant and roots.
🔄 Updated October 13, 2026
About the Quadratic Equation Solver
Solve it in seconds with the Quadratic Equation Solver. Solve ax² + bx + c = 0 and see the discriminant and roots. Accurate, instant and free — no signup, no app install. Students also reach for the Percentage Calculator and Scientific Calculator.
How to use this calculator
- Enter your numbers in the fields above.
- Results update instantly — no button to press, no page reload.
- Adjust the inputs to compare scenarios with the Quadratic Equation Solver.
Keep exploring: Percentage Calculator · Basic Calculator · Date Difference Calculator · Scientific Calculator
Frequently asked questions
What is the discriminant?
b² − 4ac — it tells you whether roots are real or complex.
What if the discriminant is negative?
The equation has two complex roots; the calculator will tell you.
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