Question about Texas Instruments TI-89 Calculator

# TI-89 Factoring Not Working

I am trying to use the Factor function and it is not working. When entering f2, 2 for factor(, (x-5)^2,x) I should get x^2-10x+25, instead I get the result (5,)^2.... Why? There must be something in the mode that is set wrong, but I am not sure what..Your thoughts...

Posted by on

• mathwizard69 Nov 15, 2007

When i use the factor function on my calculator under F2 it tells me i have a dimension error, what does that mean and how can I get my calculator to factor

×

• Level 1:

An expert who has achieved level 1.

Corporal:

An expert that hasĀ over 10 points.

Mayor:

An expert whose answer gotĀ voted for 2 times.

Problem Solver:

An expert who has answered 5 questions.

• Contributor

I think what you want to do is not to factor but to expand, which is the option right under factor [F2, 3]. expand((x-5)^2) = x^2-10x+25

Posted on Oct 07, 2007

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

×

my-video-file.mp4

×

## Related Questions:

### Factoring by grouping

Group similar terms together:
4a-ca-4b+cb
Factor out 4-c:
(4-c)(a-b)

Jul 01, 2013 | Texas Instruments TI-89 Calculator

### Im trying to use to use the factoring feature and it keeps coming up as error: non-algebraic variable in expression. What can I do to fix this so it will factor out the problem for me?

You probably stored something to the variable you are using in the expression. Go to 'Catalog', press 'D', find 'DelVar', and press enter to put it on the input bar. Then type the variable you are using after it and press enter to execute the command. Then try your factoring problem again. Or, just use a different variable.

Feb 07, 2011 | Texas Instruments TI-89 Calculator

### Does a TI 89 have an advantage over a TI 84 in a 10th grade algebra class? My sons teacher won't let him use an 89. He says it does too much of the work for him. Is this right?

the 89 is in my opinion not need/ approriate for a 10th grade algebra class, or worth the extra money.

for example the 84 wont output variables it must output a number

so your son may be doing factoring, if he inserts (x^2+2x+1) the 89 will allow him to enter it and factor it as (x+1)(x+1) or (x+1)^2 the 84 will not.

the 84 will do pleanty as far as graphing, finding zeros,plotting, calculations, and should get him any answer that he seeks so long that he knows how to use the 84. It just wont give him the intermediate steps the the 89 is able to give.

hope this helps

Apr 05, 2010 | Texas Instruments TI-84 Plus Calculator

### Can you Factor on a TI-84? IF not, does the TI-89?

Well, to answer part of your question, yes... the TI-89 does factor like this. it is inputted like this:

factor(6*x^2+11*x+4,x)

Check the catalog in the TI-84 (which is 2nd-zero) and look under F for factor()

Jan 12, 2009 | Texas Instruments TI-89 Calculator

### Factoring

you are an idiot you are entering in the equation which you wish to be factored in the wrong order quit taking stupid pills and look it up in the manual do not annoy people with such an ignorant problem ask a friend. And if you don't have one then throw your calculator against the wall as hard as you can and learn to factor the old fashion way you ******

Jan 07, 2009 | Texas Instruments TI-89 Calculator

### Factoring

x^2+5x+7 won't factor any more.. if you're trying to solve it, do:

solve(x^2+5x+7=0,x)

May 15, 2008 | Texas Instruments TI-89 Calculator

### Factoring and expanding

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

Apr 25, 2008 | Texas Instruments TI-89 Calculator

### When factoring or finding deriv. it gives me number?

oh yeah, you must've archived x, that is, you put a number onto the x variable so that the calculator calculates the answer for you, and THEN AUTOMATICALLY calculates the answer when x is in terms of that number. I am guessing you accidentally did 10[sto] x at one point. You can simply unarchived the x number and everything will be dandy!

Dec 08, 2007 | Texas Instruments TI-89 Calculator

## Open Questions:

#### Related Topics:

593 people viewed this question

Level 3 Expert

Level 2 Expert