 When adding radical expressions, you want to have the same root and radicand.  With the same root and radicand, you can add the coefficients and treat the root like a variable.

 When subtracting radical expressions, follow the same steps as adding radical expressions.  Combine the coefficients and keep the radicands the same.

 Step 1: Attempt to simplify the radicand.  Step 2: If the radicands become the same, combine the expressions.  Step 3: If the radicands do not become the same, you cannot combine them.

 When multiplying two radicals, multiply the two numbers under one radical.  When multiplying an integer and a radical, the numbers stay separate.

 Pg 487 #