Quadratic Equation Solver
Solve ax² + bx + c = 0 for its real roots and discriminant, instantly and privately in your browser.
Enter coefficients for ax² + bx + c = 0
Enter the coefficients a, b, and c from any equation in the form ax² + bx + c = 0 and get both roots instantly. Real or complex, with the discriminant shown along the way. Useful for checking homework, working through factoring practice, or solving a physics/engineering equation without digging up the quadratic formula.
How to use it
- Enter the values of a, b, and c from your equation
- Click solve to compute the discriminant and roots
- Read off both x values (real or complex)
Frequently asked questions
- What if there's no real solution?
- If the discriminant (b² − 4ac) is negative, the equation has no real roots. The solver will show the two complex roots instead (in the form p ± qi).
- What happens if a = 0?
- Then it's not actually quadratic. The tool will either solve it as a linear equation (bx + c = 0) or flag that a can't be zero, depending on what you enter.
- Does it show the steps, or just the answer?
- It shows the discriminant and both roots computed via the quadratic formula, so you can check your own by-hand work or see where you went wrong.
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Nothing is uploaded
The file never leaves your device. There is no server to send it to, so there is nothing to leak, log, or subpoena.
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No signup, no limits
No account, no email, no daily cap, no watermark, and no paid tier waiting behind the third file.
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Works offline
Load the page once and it keeps working with the network off, because all the work was always happening locally.