Purple Math
Purplemath: Solving Quadratic Equations by Factoring
Demonstrates how to solve quadratics using factoring (that is/the Zero-Product Property). Provides worked examples/and warnings about common mistakes.
University of North Carolina
S University of North Carolina Wilmington: Olving Equations Algebraically
Site provides tutorial on solving algebraic equations including radical equations, quadratic equations, polynomial equations, fractional equations, absolute value equations.
University of Saskatchewan (Canada)
University of Saskatchewan: Physics 111 Algebra Review
This site provides a brief algebra review in the following areas: exponents, logarithms, quadratic equations, and linear equations.
Disfruta Las Matematicas
Disfruta Las Matematicas: Introduccion Al Algebra
This unit could be used as supplementary material for Algebra. It has good examples with illustrations and some interactive activities.
Mocomi & Anibrain Digital Technologies
Mocomi: What Is an Equation?
Explains the different types of equations and provides examples to solve.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: High School Basic Algebra Review
An overview of basic high school algebra topics can be found here. Absolute value, signed numbers, inequalities and equations, mixture problems, and direct and indirect variation are all listed, each with links to questions posed by...