Quadratic Equation Solver

Solve ax² + bx + c = 0 using the quadratic formula. Finds real and complex roots.

ax² + bx + c = 0

How to Use This Calculator

  1. Enter your a (coefficient of x²) — ax² + bx + c = 0.
  2. Enter your b (coefficient of x).
  3. Enter your c (constant).
  4. Click Calculate to see instant results with a step-by-step breakdown.
  5. Use the Share button to copy a link with your inputs pre-filled.

⚠️ Results are for informational purposes only. Always verify important calculations with a qualified professional.

Frequently Asked Questions

What is the quadratic formula?
The quadratic formula x = (−b ± √(b²−4ac)) / 2a gives the solutions to any quadratic equation ax² + bx + c = 0. The term b²−4ac is called the discriminant and determines whether the solutions are real or complex.