Perform the operations.
Be sure to follow the correct order of operations.Simplify.
Simplifying is a challenge for many students. In particular, the numerical part is the source of confusion. It is much easier to deal with the prime factors of the number in a radical than it is with the number itself. Create a factor tree and determine the prime factorization of all numbers before simplifying radical expressions.
Instructional Video: Adding and Subtracting Radicals
Video Examples on YouTube:
J. Redden on G+