SOLUTION: please help what are the factors of {{{t^4-81}}}?

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Question 40546: please help
what are the factors of t%5E4-81?
Found 2 solutions by Nate, checkley71:
Answer by Nate(3500) About Me  (Show Source):
Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
(T~2+9)(T~2-9) OR (T~2+9)(T+3)(T-3)