# Algebra

Algebra uses letters for unknown values and finds them by rearranging equations: linear and quadratic equations, systems of equations, inequalities, polynomial factoring and the rules of exponents and logarithms. The quadratic x² − 5x + 6 = 0, for instance, factors as (x − 2)(x − 3) and has the solutions x = 2 and x = 3.

## Tools

- Quadratic Equation Solver (Coming soon): Solve ax² + bx + c = 0 with the quadratic formula, showing the discriminant and the real or complex roots.

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Category: [Math & Statistics Calculators](https://techolm.com/math-calculators)