based on the manual I cannot get expand and factor to work properly and get error messages. Please help, test tomorrow!
I follow the examples in the manul for example on page 50 of the manual which I mimic precisely:
f2 3 ( x - 5 ) ^ 3 ) enter
the response I get back is non-algebraic variable in expression
Additionally:
On page 51 of the manual the factoring example results in the same response as above. Example: f2 2 x ^ 2 - 5 , x )enter.
Thanks for your help
I thought of that, but when a numerical value is entered into variable x, mine still returns the factored form of the number.
Let's say we wanted to factor $\displaystyle x^{2}+2x+1$
If, say, 3 were stored in x, I just get back 2^4 instead of $\displaystyle (x+1)^{2}$