What is a quadratic equation?

A quadratic equation is of the form ax² + bx + c = 0, where a ≠ 0. It can have 0, 1, or 2 real solutions.

What is the discriminant?

The discriminant (b² − 4ac) determines the nature of roots. Positive = 2 real roots, zero = 1 repeated root, negative = no real roots.

Can it solve higher-degree equations?

Currently, the solver handles linear (degree 1) and quadratic (degree 2) equations. Higher degrees will be added in the future.

Algebra Solver

Solve linear and quadratic equations with step-by-step solutions. Find roots, discriminant, and more. Free, no sign-up.

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How to Use

Choose equation type

Select linear (ax + b = 0) or quadratic (ax² + bx + c = 0).

Enter coefficients

Type the values for a, b, and c.

View solution

See the roots and step-by-step solution process.

Features

Linear & Quadratic

Solve both linear and quadratic equations.

Step-by-Step

Every step of the solution is shown clearly.

Discriminant

For quadratic equations, see the discriminant value.

Real & Complex Roots

Identifies when solutions are complex (no real roots).

Frequently Asked Questions

Calculator guides

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