√192 = √(64 x 3)
http://wiki.answers.com/Q/What_is_the_root_of_192_...

Since 128 contains the perfect square factor of 64. √(128) = √(64 * 2) = 8√2. I hope this helps! Source(s) Knowledge.
http://answers.yahoo.com/question/index?qid=201106...

You can simplify radical expressions by finding the root of the given figures that have the same index number. You'll add together the figures, keeping the index number the same.
http://www.ask.com/webanswers/Science/Mathematics...

If the perimeter of a square is 56.
http://www.chacha.com/question/iftheperimeterof...
