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