SOLUTION: Double-checking my math here: Factor Completely u^4z^2-z^2

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Question 46459: Double-checking my math here:
Factor Completely
u^4z^2-z^2
Answer by adamchapman(301) About Me  (Show Source):
You can put this solution on YOUR website!
u%5E4z%5E2-z%5E2=%28u%5E2%2Az%2Bz%29%28u%5E2%2Az-z%29
I hope this helps.
Adam.
P.S. check out my website at http://www.geocities.com/quibowibbler