Quadratic Formula Calculator

Stephanie Ben-Joseph headshotReviewed by: Stephanie Ben-Joseph

How this calculator works

Enter coefficients for an equation in the form ax^2 + bx + c = 0. The tool computes the discriminant b^2 - 4ac and returns either two real roots, one repeated real root, or two complex roots.

If a = 0, the equation reduces to linear form and the calculator returns the linear solution when possible.

Enter coefficients and calculate.

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