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can the ti-89 factor this?

 
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vallero818



Joined: 18 Oct 2006
Posts: 5
PostPosted: October 18, 2006 12:18 PM    Post subject: can the ti-89 factor this? Reply with quote
(x + y – 1)(x + y + 1)
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magne



Joined: 16 Oct 2006
Posts: 6
Location: Sweden
PostPosted: October 20, 2006 5:29 PM    Post subject: Reply with quote
that expression is already factorized...
but TI-89 can expand it (even if that expression is easy to expand without any calculator Cool )
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