Learn to add and subtract radical expressions

The video tutorial covers the basics of adding and subtracting radicals, emphasizing that radicals must be the same to be combined. It then explains how to simplify radicals by breaking them down into square numbers. The instructor provides practical examples, demonstrating the simplification process and how to combine like terms with radicals. The tutorial aims to reinforce understanding of these concepts through step-by-step examples.

Explain how to combine like radicals in the expression 18 sqrt(3) + 4 sqrt(2) - 6 sqrt(2).

What steps would you take to simplify the expression involving multiple radicals?