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Old Nov26-09, 02:16 PM                  #1
Draven

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-3^2

I thought powers were things like (using the example in the title): -3 * -3 = 9

But when I enter -3^2 in my calculator, I get -9. I thought a negative multiplied by a negative was a positive. What's going on here?
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Old Nov26-09, 02:19 PM                  #2
pbandjay

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Re: -3^2

It squares the three before multiplying by negative one.

(-3)2 = (-3)(-3) = 9
-32 = -(3)(3) = -9
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Old Nov26-09, 02:21 PM                  #3
Doc Al

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Re: -3^2

The calculator assumes that you mean -32, not (-3)2. Try entering 3, then using the +/- key to change its sign, then hit the square key.
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Old Nov26-09, 02:31 PM                  #4
Draven

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Re: -3^2

Ah, I see! Thanks very much!
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