ADDITION and SUBTRACTION of RADICALS | Explanation [with Solved Exercises]

Among the operations with radicals, addition and subtraction are among the most delicate, because the rule tells us that only similar radicals can be added and subtracted. We will see what similar radicals are and how to add and subtract radicals without making mistakes.
SUMMARY
0:00 Mistakes to Avoid
0:53 Fundamental Rule and Similar Radicals
1:53 Addition and Subtraction of Radicals
2:05 Ex. 1 - Numerical Radicals
3:51 Simplify and Extract Before Adding or Subtracting
5:54 Ex. 2 - Addition and Subtraction with Simplification of Radicals
7:40 Addition and Subtraction - Literal Radicals
7:58 Ex. 3 - Addition and Subtraction of Literal Radicals