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Variables in TI-84 Plus Ce
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Topic: Variables in TI-84 Plus Ce (Read 4314 times)
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Trazmaball
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Variables in TI-84 Plus Ce
«
on:
April 24, 2019, 11:11:23 pm »
I already know how to put variables in, but whenever I do
(4x+8)(4x-8)
It just shows me -64
Instead of showing me 16x^2 - 64
So how do I get it to show the variables in the answer?
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Xeda112358
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Re: Variables in TI-84 Plus Ce
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April 25, 2019, 08:57:20 am »
That requires a Computer Algebra System (CAS). I don't have that calc, so I am not aware of any CAS or symbolic manipulation programs for it.
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Re: Variables in TI-84 Plus Ce
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Reply #2 on:
May 09, 2019, 09:43:13 pm »
@Trazmaball
X is being treated as a variable with a value. The calculator is just evaluating the expression based on what X is currently set to on your calculator. If you type X on the homescreen it will show you what the current value is. By default, I don't think the machine simplifies expressions like that. You would need a program that is capable of doing such a thing.
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