Khan Academy: Algebra: Using Multiple Properties to Simplify

Variables on both sides of the equation are the name of the game in this video, and Sal's easygoing manner and thorough instructions make even complicated algebraic equations look like games. He warms up with two equations to demonstrate...

Video demonstrates how to use the distributive property to multiply a binomial and a trinomial. Also shows how to multiply using a vertical format. Practice problems available. [5:46]

Sal explains what it means to simplify a rational expression and why we would want to do that. Just don't forget the excluded values! [15:22]

See worked examples for using exponent properties to multiply and divide when there are integer exponents. [4:23]

Video lesson introducing the power of a product rule and using it to simplify an algebraic expression. [2:50]

Video lesson introducing the power of a quotient rule and using it in conjunction with the power of a product and power of a power rules to simplify an algebraic expression. [4:19]

Video shows examples of how to simplify rational expressions. Includes writing restrictions for simplified expressions. [15:22]

Video demonstrates how to divide a monomial by a monomial by grouping like terms. Explains how to simplify the answer when the division results in negative exponents. [2:23]

Video shows an example of finding the horizontal and vertical asymptotes of a rational function. Also shows finding the behavior of the function as it approaches the asymptotes and uses this information to sketch a graph of the function....

Need a refresher on the distributive property for the SAT? Watch the tutorial to see how to apply the distributive property. [4:21]