Free online algebra tools. Solve equations, factor polynomials, find roots of quadratic equations, and more with step-by-step explanations.
Algebra is a branch of mathematics that uses letters (variables) to represent unknown numbers. It's fundamental for solving equations, understanding relationships between quantities, and modeling real-world situations.
For any quadratic equation ax² + bx + c = 0:
x = (-b ± √(b² - 4ac)) / 2a
Choose the calculator based on the structure of the problem, not just the topic name. Use Solve for X for linear equations with one unknown, the Quadratic Equation Solver for ax^2 + bx + c = 0, the Factoring Calculator for integer factors, and the Polynomial Calculator for adding, subtracting, or multiplying polynomial expressions.