SOLUTION: 4 square root 8 I don't understand how this is simplified into 8 square root 2. Please explain. Thank you!

Algebra ->  Square-cubic-other-roots -> SOLUTION: 4 square root 8 I don't understand how this is simplified into 8 square root 2. Please explain. Thank you!      Log On


   

Question 383083: 4 square root 8
I don't understand how this is simplified into 8 square root 2. Please explain. Thank you!
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
4 square root 8
I don't understand how this is simplified into 8 square root 2.
:
4sqrt%288%29
Factor inside the radical to reveal a perfect square (4)
4sqrt%284%2A2%29
extract the square root of that perfect square (2)
4%2A2sqrt%282%29
which is
8sqrt%282%29
:
Did I make this understandable to you?