Khan Academy: Algebra: Adding and Simplifying Radicals

It doesn't get simpler than this. Scholars first learn to simplify radicals by determining the prime factors of the radicand. The lesson progresses to simplifying radicals involving algebraic expressions in the radicand.

Video showing how to add and subtract radicals by first simplifying the radicals. Video is also included in the Algebra: ck12.org strand. [7:57]

This resource explains how to subtract radicals and then simplify the results. [5:45]

Video showing how to multiply radicals and then simplify the results by using fractional exponents and the rules of exponents. [4:25]

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]

Video solving a radical equation that results in a quadratic equation and yields an extraneous solution. Explains how the extraneous solution appeared. [11:10]

Video shows example of adding and subtracting rational expressions. Includes discussion of using the least common multiple of the denominators for a common denominator. [2:56]

Video showing how to divide radicals and then simplify the results by using the rules of exponents. [3:07]

Video working through multiple examples of simplifying radicals by finding the largest perfect square factor. Includes a discussion about how simplifying radicals is the same as using fractional exponents and following the rules of...

Video simplifying a rational algebraic expression with fractional exponents and a square root. [6:32]