Skip to content
TOOLORA
Math

Quadratic Equation Solver

Solve ax² + bx + c = 0 for real or complex roots.

Popular
Was this tool useful?

How it works

Fill in the 3 fields above and Quadratic Equation Solver calculates the result instantly, recalculating as you change any value. It applies the formula x = (−b ± √(b²−4ac)) / 2a. The math runs locally in your browser — nothing is sent to a server.

Formula

x = (−b ± √(b²−4ac)) / 2a

Examples

  • a 1, b -3, c 2 → x₁: 2

Frequently asked questions

How do I use the Quadratic Equation Solver?

Enter your values in the 3 input fields and the result is calculated automatically as you type. Change any value to see the numbers update instantly.

What formula does the Quadratic Equation Solver use?

It uses x = (−b ± √(b²−4ac)) / 2a. The calculation is performed in your browser using standard, well-established math for accurate results.

Is my data private?

Yes. The Quadratic Equation Solver runs entirely in your browser. Nothing you enter is uploaded, saved to a server, or shared — it never leaves your device.

Is the Quadratic Equation Solver free?

Yes, it is completely free with no sign-up, no limits and no watermarks. Like every tool on math and the rest of the platform, you can use it as often as you like.

Popular in Math