Quadratic Equation Solver
Find real or complex roots of ax² + bx + c = 0.
Quadratic Equation Solver● Ready
RESULTYour answer will appear here
UNDERSTAND THE RESULT
Useful context for this calculator
Arrange the equation in standard form and enter every coefficient, including zero for a missing term. The discriminant indicates whether the roots are real or complex.
- 1Enter every requested value.
- 2Check decimals, rates and units.
- 3Calculate and review the formula.
- 4Verify important figures independently.
Input and result checklist
Use this table before relying on the displayed answer.
| Check | What to review | Why it matters |
|---|---|---|
| Inputs | Values, decimals, signs and units | The output depends entirely on the input |
| Formula | The method displayed above | Shows what is and is not included |
| Assumptions | Rates, time periods and fixed values | Real conditions may be different |
| Rounding | Final displayed precision | Small differences are normal |
Questions about this tool
Can a equal zero?
No. If a is zero, the equation is linear rather than quadratic.
Is the calculator result exact?
It is a mathematical result or estimate based on your inputs. Fees, taxes, rules, measurement error or provider-specific terms may affect a real outcome.
Is my information saved?
The calculator does not require an account. Do not enter passwords, account numbers or sensitive personal information.
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