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Equation Solver

Solve quadratic equations

equationquadraticsolver

📖 How to Use

Enter the three coefficients a, b, c of ax²+bx+c=0
Click Solve to see the discriminant Δ and the two roots

📐 Formula

Δ = b²−4ac
x = (−b ± √Δ) / (2a)
Δ>0: two distinct real roots
Δ=0: two equal real roots
Δ<0: no real roots

❓ FAQ

What if the discriminant is negative?▾

Δ<0 means the equation has no real roots; complex roots will be shown.

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About Equation Solver

This tool is completely free, no registration required. Works directly in your browser. Supports both PC and mobile devices.

Equation Solver is a free online tool that works on both PC and mobile. No registration or download required — just open in your browser. Results are accurate and reliable for everyday use and professional reference.