Working with Radicals in Math

A video to show basic Radical Rules(CLICK HERE!) 

A radical site with many examples 
http://math.knepfle.com/radicalintro.htm

Adding Radicals (Video - Click Here!)
http://math.knepfle.com/video_add_radicals.html

Fractions and Radicals (Video - Click Here!)
http://math.knepfle.com/video_two_methods.html

Using Conjugates (Video - Click Here!)
http://math.knepfle.com/video_using_conjugates.html

Another Conjugate Problem (Video - Click Here!)
http://math.knepfle.com/video_problem_45.html

Introducing "i" (Video - Click Here!)
http://math.knepfle.com/video_intro_to_i_01.html

Radicals where "i" appears (Video - Click Here!)
http://math.knepfle.com/video_split_radicals.html

Try these problems.

The smaller picture has the answers

Click on any picture to enlarge

A practical word problems?

A man has a monkey.At present, the man’s age plus the monkey’s age totals 100. The man is now three times as old as the monkey was when the man was 10 years older than the monkey is now.
How old is the man?