Solve quadratic, cubic and quartic equations

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Pick the degree, enter the coefficients and get every solution, complex ones included. For quadratics it also gives the parabola's vertex.

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How to use it

  1. Pick the degree (the calculator is already in Polinómica, polynomial).
  2. Enter the coefficients, pressing = after each one. For x² + 2x − 2 = 0: 1, 2, −2.
  3. Press = to solve and again to see each solution: x₁ = −1 + √3, x₂ = −1 − √3.

Frequently asked questions

Does it show complex solutions?

Yes, e.g. ±i for x² + 1 = 0. You can turn them off in SHIFT MENU → Ecuación/Func.

What about other equations?

In Calculate mode, use SHIFT CALC (SOLVE) for any equation, such as x² = 2.

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