Khan Academy
Khan Academy: Algebra: Adding and Subtracting Rational Expressions
Video showing how to add and subtract rational expressions by finding a common denominator and then simplifying the result. Also includes finding the domain of the result. [8:15]
Khan Academy
Khan Academy: Algebra: Multiplying and Simplifying Rational Expressions
Video demonstrates how to multiply two rational expressions, simplify the product, and determine the domain. [5:05]
Khan Academy
Khan Academy: Algebra: Multiplying and Dividing Rational Expressions 1
Video lesson involving multiplying two rational expressions, simplifying the result and then stating the domain of the expression. [3:38]
Khan Academy
Khan Academy: Algebra: Multiplying and Dividing Rational Expressions 2
Video lesson on multiplying rational expressions and simplifying the result by factoring the difference of squares. Includes stating the domain of the expression. [4:52]
Khan Academy
Khan Academy: Algebra: Multiplying and Dividing Rational Expressions 3
Video lesson involving dividing rational expressions and simplifying the result by factoring out the greatest common factor. Includes stating the domain of the expression. [4:10]