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Quadratic Equation SolverCalculators

Quadratic Equation Solver

Solve real or complex roots, inspect the discriminant and vertex, and reveal every substitution step with Show Work.

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What Is the Quadratic Equation Solver?

The Quadratic Equation Solver calculates both roots of ax² + bx + c = 0, including complex roots, and reports the discriminant and vertex.

How It Works

Enter a, b and c. A zero a coefficient is treated as a linear equation when b is nonzero.

When to Use It

Use it to check algebra work and examine the defining features of a quadratic.

Frequently Asked Questions

What Does A Negative Discriminant Mean?
The equation has two complex conjugate roots and no real x-axis crossings.

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