TOOLS UNIVERSE / x²

Quadratic Equation Calculator

Use Quadratic Equation Calculator online for free — fast, clear and without registration.

● Local in your browser · no upload
1Δ3 ; 2x₁ ; x₂(2.5 | -0.25)Vertex

x = (−b ± √Δ) / 2a

METHOD

Calculation, assumptions and sources

Formula used

x = (−b ± √(b²−4ac)) / 2a

What is included

Solve ax² + bx + c and show the discriminant, real or complex roots and vertex.

Assumptions and limits

Inputs are treated as finite real numbers; rounding and model choices are shown with the result.

GUIDE

Quadratic Equation Calculator

Solve ax² + bx + c and show the discriminant, real or complex roots and vertex.

Enter the required values or content, adjust the options and then review the detailed result.

FAQ

Frequently asked questions

What can I do with Quadratic Equation Calculator?

Solve ax² + bx + c and show the discriminant, real or complex roots and vertex.

How do I use Quadratic Equation Calculator?

Enter the required values or content, adjust the options and then review the detailed result.

Are my data uploaded?

No. Inputs and files for this tool are processed locally in your browser.

Is this tool free?

Yes. Every feature is free and requires no registration.

Does it work on mobile?

Yes. The interface is optimized for iPhone, Android, tablets and desktop computers.