Question about Texas Instruments TI-84 Plus Silver Edition Graphic Calculator

# Know a program for the TI 84 Plus SE for factoring polynomials?

I would prefer the source code so I could manually key it into my calculator because I don't trust the websites where you download the programs plus I can never figure them out. I'm kinda coumputer challanged.

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• pleasehelp12 Jan 29, 2009

can you please show the source code for something like
x^2 + 6x + 9 and turn it into (x+3)(x+3)
if you can...thanks

• Kemi Osundina Jan 29, 2009

To xoshi101 yes I mean the first one, something that could take x^2+6x+9 and turn it into (x+3)(x+3).

• xoshi101 May 11, 2010

do you mean something that could take something like x^2 + 6x + 9 and turn it into (x+3)(x+3)?  or do you mean the other way around.  I could probably do the first one.

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:Prompt A
:Prompt B
:Prompt Cdf
:Disp(-B+sqrt(B^2-4AC))/2A
:Disp(-B-sqrt(B^2-4AC))/2A

Posted on Apr 09, 2009

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To know the x'es in something like X²-3X+2=0
use this: Prompt A,B,C B²-4AC->D Disp " " Disp D Disp " " If D>=0 Then Disp (-B-sqrt(D))/(2A) Disp " " Disp (-B+sqrt(D))/(2A) Else Disp "NO SOLUTION" End Pause ClrHome

this gives 1: the location where the graph crosses the x-axis 2: the 2 solutions of X. If none, it only displays the one above and the text: NO SOLUTION

Posted on Sep 07, 2009

• erathfon2000 Aug 26, 2011

I have a program that will factor any trinomial into parentheses. It will even pull out the GCF and place it in front of the parentheses.
The only problem is that i cant get the code cause the program does not let me edit it.
If you know of a way that I can get the source code, i will gladly send it to you.
I only know how to transfer this program from calc to calc.
email me at erathfon2000@yahoo.com if you know how i can get it.

• zack shore Sep 16, 2013

@erathfon2000 the program was not written in TI-Basic it was written on a computer probably in a version of C and compiled into a format the calculator can understand. it will run but the source can't be viewed on the calculator you could try uploading it to your computer and getting a decompiler and decompiling the program, sorry but I can't suggest a program to use. I am just getting into coding I am currently learning Java

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Posted on Jan 02, 2017

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### How do you delete a Program under the Program button on a TI-84 Plus?

Use the memory manager. Press 2ND [MEM] to bring up the memory manager, then 2 7 to bring up the list of programs in memory. Use the arrow keys to move to the one you want to delete, press DEL, then answer Yes to the prompt. Press 2ND [QUIT] to exit the memory manager.

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### The memory button on my TI-84 Plus will not function

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### Error message for TI-84 Plus

Try and resolve this issue by re-installing the calculator's operating system using the TI OS Downloader. To do this, please follow the steps listed below. Be sure you have fresh batteries in your calculator.

1. Download the OS 2.43 file to your computer (preferably the desktop).

2. Open the TI OS Downloader by going to Start>>Programs>>TI Tools>>TI Connect>>TI OS Downloader. If you do not see TI OS Downloader, you may need to install the latest version of TI Connect. You can download a free copy from:

3. From the main screen, select your calculator and cable type. Click "Next" to continue.

4. From this screen, locate the OS 2.43 file by clicking on the yellow browse folder and navigating to the location where you downloaded it. Double-click the OS 2.43 file to select it.

5. Remove one triple A battery from your TI-84 Plus. With the battery removed, press and hold the [DEL] key while you re-insert the battery.

6. You should see a "Waiting..." message on the screen of your calculator. If so, disconnect the USB cable from your computer, re-connect it and then click "Start Download". This should begin the OS transfer process.

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### Mem cleared

Press any key (except for 2nd and On), and the message should disappear.

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