Radical Operation

2. Sometimes when you multiple two radical expressions perfect
square factors are the result. For that reason, it is usually best
when combining the numbers in the radical to leave them factored
until the very end.
Example,

3. Question 6:
Carmen multiplied 5 together with another radical and got a result
whose radical was 2. Lynn said that was impossible. Who is right?
Show that you are right saying who is right.