Question about Texas Instruments TI-89 Calculator

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When factoring or finding deriv. it gives me number?

Before it works fine, when I try to factor, expand, find d but now it give me only numbers. I'm guessing I probably messed up on some settings and I try going through the mode menu changing everything and nothing worked.

Before

d/dx( 3x^2+2x,X) = 6x+2

Now
Same thing = 62

Factoring gives me something similar.

Thanks in advance.

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Oh yeah, you must've archived x, that is, you put a number onto the x variable so that the calculator calculates the answer for you, and THEN AUTOMATICALLY calculates the answer when x is in terms of that number. I am guessing you accidentally did 10[sto] x at one point. You can simply unarchived the x number and everything will be dandy!

Posted on Jul 23, 2008

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