Classpad 330 calculator factor and expand problem HELP!

[monica_]

When i enter factor(x^3-2x^2-5x+6) into my calculator
It comes out as 2*3 but it should be (x+2)(x-1)(x-3)
and vice versa with expand.

Does anyone know what's the problem with my calculator?

[BigAl]

I had the same problem many times. My calculator would expand the given expression if it wanted to.

[Kanon]

Obligatory have you tried turning it off and on again
What you should try (unless you have notes/soft-keys programmed) is to just try reset it in the options tab. That seemed to fix 90% of my 330 problems

[plato]

Try pressing the x variable button by itself and then press EXE. I am guessing you will see a value stored to the variable x. In my case it was a matrix that I had stored into x and which gave me an error message of "wrong argument type" when I tried the factorising with x as a variable. If there is no value stored there, you should see an x as the output and in which case factoring should work.

If you do see a value, this must be cleared. But I could not get  EDIT-CLEAR ALL from the menu at the top of the screen to clear the variables. (Putting a zero into x does not help although I wonder if putting x into x would do it.)

I suceeded by going to VARIABLE MANAGER (found by pressing the icon at the top left corner of the screen next to the Edit button. I then opened up, in turn, each of three folders that contained variables on my calculator. These were labelled Presystem, Main and Open.
Within each, I clicked the boxes next to all variables found there and then used EDIT-DELETE to clear these. Then, when I typed x followed by EXE, the output was again x and factoring again worked for me.

Please let us all know if this worked for you.

[monica_]

I appreciated your suggested method and believe it would have fixed the problem too. ^

I managed to fix the problem earlier by going to System then Reset and having the options to delete the item in memory:
Variable/Program, eActivity Data or BOTH
I picked BOTH and then Reset which worked out fine, I would have rather have tried selecting Variable/Program or either eActivity Data to see if they worked as well.

[def.8746325]

Excellent, thanks @plato