Quadratic Equation Solver
Real roots of ax² + bx + c = 0.
How it works
x = (−b ± √(b² − 4ac)) ÷ 2a. A negative discriminant means there are no real roots.
FAQ
Is this calculator free?
Yes. No signup is needed and nothing you enter is stored.
Is the result exact?
Results are rounded for display. For financial, medical, or legal decisions, confirm with a professional.
Do my numbers leave my device?
No. The calculation runs in your browser.