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Math Help - distributing on Ti-84 plus

  1. #1
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    distributing on Ti-84 plus

    I am sure my calculator can do this, i just cant figure out how. For example, is there a way i can have the calculator work out [(6-x^2)^2-(6-4x+x^2)^2], to get the answer?
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  2. #2
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    Quote Originally Posted by Juggalomike View Post
    I am sure my calculator can do this, i just cant figure out how. For example, is there a way i can have the calculator work out [(6-x^2)^2-(6-4x+x^2)^2], to get the answer?
    Use the "expand" function. You can either type out the word or pick it from your algebra or math menu.

    Example:

    expand((6-x^2)^2-(6-4x+x^2)^2)
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  3. #3
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    Quote Originally Posted by Juggalomike View Post
    I am sure my calculator can do this, i just cant figure out how. For example, is there a way i can have the calculator work out [(6-x^2)^2-(6-4x+x^2)^2], to get the answer?
    Unfortunately a TI84 uses only numbers, no symbols for variables. (As you already have noticed the TI84 doesn't have the "expand(" command)

    If you use a TI89 then you can use variables because this calculator has a CAS implemented.
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  4. #4
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    Quote Originally Posted by earboth View Post
    Unfortunately a TI84 uses only numbers, no symbols for variables. (As you already have noticed the TI84 doesn't have the "expand(" command)

    If you use a TI89 then you can use variables because this calculator has a CAS implemented.
    yeah i normaly use a Ti89, however teacher for calc 2 said we have to use an 84, gonna be a hell of a downgrade heh
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  5. #5
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    Yikes. I'm sorry for the bad information then. I thought the TI-84 was the lowest common denominator with the other algebra capable calculators.

    Sorry Juggalomike. ;(
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  6. #6
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    There is an add-on application you can buy for $50.

    Zoom Math 200 - Algebra 1 Program for TI-83 Plus and TI-84 Plus Graphing Calculators

    It looks like it at least lets you expand using FOIL; not sure about what else it can do.

    Maybe it can help though.
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  7. #7
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    Quote Originally Posted by QM deFuturo View Post
    Yikes. I'm sorry for the bad information then. I thought the TI-84 was the lowest common denominator with the other algebra capable calculators.

    Sorry Juggalomike. ;(
    np, at the very least i can use that on my 89
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