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Calculators Ridiculously simple TI89 question

  1. Jun 7, 2010 #1
    This is just driving me crazy, I know its a simple mode adjustment but I just can't find it. I am trying to display answers in algebraic notation but keep getting numbers that I can't even determine to base of.
    Example: 3x^2(-5) yeilds -540 when I am looking for -15x^2.
    If anyone could please help me with this exceedingly frustrating and exponentially benign question I would be grateful^10\inf.
     
  2. jcsd
  3. Jun 7, 2010 #2

    Borek

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    Staff: Mentor

    Try F6 Clear a-z.

    I can be wrong, but I guess you have defined x variable.
     
  4. Jun 7, 2010 #3
    YEAH! That did it! Thank you so much. Now, how did I do that in the first place? Does the variable get set to a default when you define it in an equation? Just curious. You just made my whole semester, thank you so much!
     
  5. Jun 7, 2010 #4

    Borek

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    Staff: Mentor

    I don't remember details, many ways to skin that cat. For example it is enough to STOre something into x. Like
    Code (Text):
    2 STO> x
     
  6. Jun 7, 2010 #5
    I see. Thanks again, I knew it had to be a simple solution but it eluded me for days.
     
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