# (-3)(-3)? Prove it!

**URL:** <https://boards.straightdope.com/t/3-3-prove-it/240161>\
**Category:** Factual Questions\
**Created:** [April 15, 2004, 1:38pm UTC](https://boards.straightdope.com/t/3-3-prove-it/240161 "2004-04-15T13:38:45Z")\
**Posts on this page:** 3\
**Page:** 3

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**Author:** ![andymurph64](https://avatars.discourse-cdn.com/v4/letter/a/a88e57/32.png) [@andymurph64](https://boards.straightdope.com/u/andymurph64)\
**Post date:** [May 3, 2004, 4:22pm UTC](https://boards.straightdope.com/t/3-3-prove-it/240161/41 "2004-05-03T16:22:00Z")

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I phrased that wrong.

Examples of money almost always work well. It ‘sticks’ and people accept them.

What I was trying to say is that in this case, while there are abundent examples using money, it just doesn’t seem to ‘stick’ as well. I found temperature over days works better.

YMMV

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**Author:** ![alimarx](https://avatars.discourse-cdn.com/v4/letter/a/e274bd/32.png) [@alimarx](https://boards.straightdope.com/u/alimarx)\
**Post date:** [May 3, 2004, 4:41pm UTC](https://boards.straightdope.com/t/3-3-prove-it/240161/42 "2004-05-03T16:41:27Z")

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(-3)(-3)=9 ?

But doesn’t

(_)(_)=====D ?

[SIZE=1]Sorry, I guess I’m spending too much time in chat rooms…

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**Author:** ![RM\_Mentock](https://avatars.discourse-cdn.com/v4/letter/r/e274bd/32.png) [@RM\_Mentock](https://boards.straightdope.com/u/RM_Mentock)\
**Post date:** [May 3, 2004, 5:00pm UTC](https://boards.straightdope.com/t/3-3-prove-it/240161/43 "2004-05-03T17:00:31Z")

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What happened to the extra dollar?

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