Question about Texas Instruments TI-89 Calculator
When I try to factor a polynomial on my calculator it gives the answer as the same problem I put in. For example, if I say factor(3x^2+6x+9) it says the answer is 3x^2+6x+9. When I first got the calculator a few months ago it worked fine, but now it does this for almost any application I try to use.
The polynomial cannot be factored in the set of Real numbers: The roots of the polynomial equation are complex.
You should use the command cFactor( found under F2:Algebra> A:Complex>2:cFactor(
However, you should set the Mode Complex>Rectangular, and the EXACT/APPROXIMATE mode to Exact, otherwise your roots will be in decimal representation.
Posted on Jan 02, 2014
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Posted on Jan 02, 2017
Well, to answer part of your question, yes... the TI-89 does factor like this. it is inputted like this:
Check the catalog in the TI-84 (which is 2nd-zero) and look under F for factor()
Posted on Jan 19, 2009
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