Free step-by-step calculator

One calculator. A clearer way through.

Choose a labeled calculator, enter the problem in familiar notation, and follow the method one step at a time.

12 calculator modesLive LaTeX math inputSteps and practice included
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Math calculatorsx = (−b ± √(b² − 4ac)) / 2a

Quadratic Formula Calculator

Solve ax² + bx + c = 0, evaluate the discriminant, and follow each quadratic-formula substitution.

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Use ^ for the exponent. Write the quadratic in standard form equal to zero.

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Choose a calculator, enter a problem in the formatted math field, then select “Show my steps.”

Learn the method

What this calculator helps you notice

  1. 01Identify coefficients with their signs
  2. 02Use the discriminant to classify roots
  3. 03Keep the entire numerator over 2a