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to the owners of TI-89(calculator). HELP
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yogi bear
i have a problem. there has to be simple solution but i cant figure it out. I looked in the book how to do it but im getting an error.
here is what im trying to do.
I prees F2, then 3(to expand), then i type x^2-6), so the whole thing looks like this expand(x^2-6), and i press enter, and everytime im getting this error: Non-algebraic variable in expression. i dont know what to do, everytime i try to something(like factor etc) with X im getting an error.
WHAT DO I NEED TO DO. HELP ME!
DJ_Bod
ummmm....

I think you need it to equal something. like:
expand(x^2-6=0)

but I also think you need to put what variable you want it to expand by... so:
expand(x^2-6=0,x)

It's been awhile that might be totally wrong
yogi bear
still doesnt work, but thanks
igottaknow
i havent done algerbra in a million years but how are you going to solve for x if you only entering one side of the equation? For example: x-2
DJ_Bod
quote:
Originally posted by yogi bear
still doesnt work, but thanks


sorry it didn't help.... Good luck with it. :)
yogi bear
i need that for tomorrow, i need to do like 80 problems, and i wont be able to finish it by expanding, factoring etc. without a calculator.
im ed:whip:
_Nut_
click the mode button and make sure that it says:

Normal
Float
degree
RectC
Func
Dec
RectV
dxDer1


By changing the options it could bring up the error?
yogi bear
RectC ??

RectV ??
dxDer1 ??

i dont have those in mode, could you tell whats the name of the option?
UWM
You might find the solution in the calculator's manual.
yogi bear
quote:
Originally posted by UWM
You might find the solution in the calculator's manual.

didnt you read the first post?
and i do exactly what the manual says, and it doesnt work

Floorfiller
quote:
Originally posted by yogi bear
didnt you read the first post?
and i do exactly what the manual says, and it doesnt work


well then maybe you'd better get busy...its gonna be a long night of doing it the old fashion way :rolleyes:
yogi bear
i found the solution, it was very simple one
thread closed
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