ATAR Notes: Forum
Archived Discussion => 2009 => End-of-year exams => Exam Discussion => Victoria => Mathematical Methods (and CAS) => Topic started by: scatteam_2 on June 14, 2010, 06:44:47 pm
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lets say something simple
expand (x+2) ^3
i went into menu --> 3 --> expand and typed in my equation
but the calculator gives me the answer of (x+2)^3
instead of expanding
is there a certain setting i need to have it on to get this right?
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expand((x+2)^3)
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^if that doesn't work, then it's safe to say it's broken :P
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make sure you are using expand() with the equation in the ()
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Not equation but expression.
EDIT: Why is this in the exams discussion forum?
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You're referring to the TI-nspire right? My CAS can do it though...
However, when I expand (x(x-2)(x+3)) it says it's an "invalid multiply" and can't do it.
yeah you have to actually put 'times' inbetween the brackets and inbetween the first bracket and the x
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You need to press the multiply button whenever there is multiplication, so between brackets, as well as between the first bracket and the "x".
Beaten...
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yeah you have to actually put 'times' inbetween the brackets and inbetween the first bracket and the x
Wow sounds like there is a lot more work in getting the n-spire to do stuff. the classpad doesn't care whether you put the multiply in or not. (Does this count as trolling?)