Brain Teasers
What`s the product?
(a-x)(b-x)(c-x) ... (z-x) = ?
Answer
0One of the terms is (x-x) which equals 0. Anything times 0 is 0.
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Comments
nice. didn't see x-x coming
that's a cheating of a very good teaser present in this site.
I don't like math. BUt ok anyway.
this teaser was AWESOME!!!!
i really liked it.
it was clever.
good going dude!!!!
i really liked it.
it was clever.
good going dude!!!!
Don't you need at least one number?
Clever! Didn't get it?
I forgot to say it was good
I got it.
This came striaght off a MindTrap Card. i still missed it though.
stupid algebra 2. they teach you to think outside the box.
stupid algebra 2. they teach you to think outside the box.
Nice teaser couldn't get it though.
darthforman: If you don't like math, what are you doing in this section? Cute teaser, didn't occur to me right away.
good one
This should almost be in the trick catagory. It was simple enough, but you got me. Very nice!
no trick...you just had to think it through.....
i got it....mainly because my mind went immediately to the point...x-x....
good one!
i got it....mainly because my mind went immediately to the point...x-x....
good one!
very good . i loved it . i didn't even try to see where they were going with it .
z-x? ther is no x-x
nouice
simple n fun .. like it ..
Wow! I was trying to find a pattern, scribbling stuff out a couple times, adding like terms.... woops!
Very cool, and I agree with paul's comment, this would be equally at home in the tricks section.
Very cool, and I agree with paul's comment, this would be equally at home in the tricks section.
d'oh!
Duh. i should've known.
this was great. i love math and it went right over my head....
That was different and tricky. Nice job.
Ah, tricky tricky, eh? Nice one, didn't get it, though.
wow....good job loved it!!!! very neat...didn't see the (x-x) comin'...maybe i should tell my math teacher 'bout it....eh?? well LOVE IT!! make more like that!!!
that was smart, to make it a no thinking required problem where most people will think
Very creative and good. I agree that because only x-x is the equation it would make a better trick, but I got it and liked it
i was actually about to times everything out. i'm glad i stopped at c and looked at the answer. this is a really good teaser
If it were me I'd have placed it in trick!
But very tricky
*adds to favourites*
But very tricky
*adds to favourites*
The answer should have been obvious to me! *smack forehead* Nice teaser!
huh?i didn't get it at all nice work
Ooh, that was a good one! I didn't get it, but the answer made me slap myself in the forehead (which looked really dumb to the people walking by my desk!)
that was a good one
This was a bonus question on a pre-calc test I took in high school. I got it right back then. I started to multiply it out, but then I thought "wait, what happens when you get to x-x?" Then I got it.
This would have been way too easy had it been in the trick category. People would be looking for the trick. In the math category people give up after the first few letters. I really liked it.
I'm not good at math but I solved it. It was pretty creative.
nice ....good one ...
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