Question about Texas Instruments TI-89 Calculator

# Factoring and expanding

When i try to factor or expand any equation, all i get as an answer is { }. is there something in the mode menu that i have to change?

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• saxofoonie Jul 25, 2008

it says "non algebraic variablein expression" when i factor

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• Contributor

Try going to var link and deleting any variables like x and whatever you're trying to factor as they may be stored as lists and thus come out factored like that

Posted on Jul 10, 2008

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