Quadratic Equation Solver
Enter a, b and c to instantly solve ax² + bx + c = 0, including complex roots when needed.
ax² + bx + c = 0
a =
b =
c =
Pourquoi utiliser cet outil ?
Solving a quadratic equation by hand means computing the discriminant and applying the right formula depending on its sign. This tool solves it instantly for any a, b, c, including complex roots, directly in your browser.
Why it's free
A discreet ad banner covers hosting costs — that's the whole business model. No account to create, no usage limit, no paid tier unlocking the real result. Calculations run in your browser, so your numbers, dates and text never leave your device.
How our tools work