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Quadratic Formula Calculator

Enter a, b, and c to calculate real or complex roots with the quadratic formula.

x = 2, 1Discriminant: 1

How to use this Quadratic Formula Calculator

Solve quadratic equations in the form ax² + bx + c = 0. Enter your values above and the result is calculated directly in your browser. No account is required.

Fast answer, clear inputs

This tool is built around one job: give the answer quickly without forcing a signup or hiding the result. Related tools are linked nearby when the next calculation or conversion is useful.