Khan Academy
Khan Academy: Algebra Ii: Intro to Rational Expression Simplification
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]
Khan Academy
Khan Academy: Simplifying Rational Expressions: Common Monomial Factors
Sal simplifies rational expressions by taking common factors and canceling them. [6:59]
Khan Academy
Khan Academy: Dividing Polynomials by Linear Expressions: Missing Term
Dividing rational expressions using long division. [4:32]
Khan Academy
Khan Academy: Algebra Ii: Dividing Polynomials by Linear Expressions
Sal divides a rational expression using long division. [3:24]