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04-08-2011, 12:07 PM   #31
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Re: 48÷2(9+3) = ??

Quote:
 Originally Posted by AkamaruChewtoy Seriously - are we still discussing after we all agreed it was a vague and poorly arranged math equation that intentionally leads to disagreement? Also, you completely misinterpreted my definition of "÷", half because you didn't read the word "denominator" and half because when I wrote out my answer, I didn't put in the proper brackets to be completely clear - which is the whole problem. When I say it separates out the left side into numerator and right side as denominator, I mean 48 is the numerator and 2(9+3) is the denominator or: 48 2(9+3) Or to be completely clear: 48/(2*(9+3)) Clear? I'm not wrong because it is how I interpret the question based on what I was taught - in like grade 4!. (I think it was also commonly taught in Canada that when given such equations, you would often progress from left to right on even order of operations, such as division and multiplying.) Quit not understanding whether intentional or not.
actually i misunderstood nothing, go back and read. i said you are wrong because you cant treat it as a denominator if its not 1 term. with out the brackets you gave it its not 1 term and cant be the denominator

Last edited by AniMeFaN; 04-08-2011 at 12:11 PM.

 04-08-2011, 12:15 PM #32 kluang One Punch Man     Join Date: Apr 2006 Posts: 6,404 Thanks: 3,166 Thanked 4,595 Times in 2,087 Posts Re: 48÷2(9+3) = ?? a = b a2 = b2 = ab a2 - b2 = a2 - ab (a+b)(a-b) = a(a-b) Now, divide both members by (a-b). a+b = a a+a = a 2a = a 2 = 1 __________________ To err is human, to forgive, divine. Humans aren't machines... they have souls, feelings. They live, they die, they love, they hate... And yes, they even make mistakes..... When kluang finds you creepy and wrong then you﻿ are beyond horrible. He who fights with monsters should look to it that he himself does not become a monster. And when you gaze long into an abyss the abyss also gazes into you. Two things are infinite: the universe and human stupidity; and I'm not sure about the the universe. Quis custodiet ipsos custodes? Being Malaysian is about driving in a German car to an Indian restaurant for an Indonesian food, then travelling home, grabbing a Pakistani kebab on the way, to sit on Swedish furniture and watch American shows on a Japanese TV. Because we have no originality.
04-08-2011, 12:23 PM   #33
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Re: 48÷2(9+3) = ??

Quote:
 Originally Posted by kluang a = b a2 = b2 = ab a2 - b2 = a2 - ab (a+b)(a-b) = a(a-b) Now, divide both members by (a-b). a+b = a a+a = a 2a = a 2 = 1

a and b are 0

 04-08-2011, 12:28 PM #34 AniMeFaN Chuunin   Join Date: Dec 2009 Posts: 717 Thanks: 103 Thanked 195 Times in 128 Posts Re: 48÷2(9+3) = ?? he wrote it wrong, guess you deleted your post kael Last edited by AniMeFaN; 04-08-2011 at 12:35 PM.
 04-08-2011, 12:30 PM #35 kael03 Aspiring Physicist   Join Date: May 2010 Age: 28 Posts: 4,655 Thanks: 4,745 Thanked 8,655 Times in 3,819 Posts Re: 48÷2(9+3) = ?? Or you're deluding yourself to make yourself look smarter. I didn't post anything.
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04-08-2011, 12:33 PM   #36
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Re: 48÷2(9+3) = ??

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 Originally Posted by kael03 Or you're deluding yourself to make yourself look smarter. I didn't post anything.
what ever makes you sleep better at night

04-08-2011, 12:33 PM   #37
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Re: 48÷2(9+3) = ??

Quote:
 Originally Posted by AniMeFaN a2 - ab = a(2-b) not a(a-b)

a^2-ab = a(a-b), because the term in common is a. You can't multiply a for its exponential, 2.
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04-08-2011, 12:34 PM   #38
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Re: 48÷2(9+3) = ??

Quote:
 Originally Posted by AniMeFaN actually i misunderstood nothing, go back and read. i said you are wrong because you cant treat it as a denominator if its not 1 term. with out the brackets you gave it its not 1 term and cant be the denominator
What - have you not taken factoring? Replace 2 with X

48÷x(9+3)

It's one term because it's connected to the bracket which MUST be dealt with first. The question you are after is do you drop the brackets once you add. I would say no, again, based on what I was taught.

2(9+3) or 2(12) is still one term and can be treated as such.

In any case, I'm convinced you're just trolling now.
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04-08-2011, 12:36 PM   #39
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Re: 48÷2(9+3) = ??

Quote:
 Originally Posted by AkamaruChewtoy In any case, I'm convinced you're just trolling now.
With his recent string of posts...I'm not convinced.

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04-08-2011, 12:37 PM   #40
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Re: 48÷2(9+3) = ??

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 Originally Posted by Numinous I beg your pardon? a^2-ab = a(a-b), because the term in common is a. You can't multiply a for its exponential, 2.
i wasnt thinking it was an exponent the way it was written. you know exponents arent the size of a normal number

 04-08-2011, 12:38 PM #41 ACt Heart Wizard     Join Date: May 2009 Location: The Halls of Irreverence Posts: 3,218 Thanks: 5,287 Thanked 18,546 Times in 4,823 Posts Re: 48÷2(9+3) = ?? Aww fuck... new answer: 48÷2(9+3) = 48÷18 + 6 = 2 2/3 + 6 = 8 2/3 This is why Mathematicians hate people __________________ I've become A simple souvenir of someone's kill And like the sea I'm constantly changing from calm to ill Madness fills my heart and soul as if the great divide could swallow me whole oh, how I'm breaking down
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04-08-2011, 12:40 PM   #42
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Re: 48÷2(9+3) = ??

Quote:
 Originally Posted by AniMeFaN i wasnt thinking it was an exponent the way it was written. you know exponents arent the size of a normal number
And you know that these forums don't have an intuitive way to put the 2 in the right place, so kluang just made the notation a2.

Also, if it was a*2, the notation is 2a, not a2.

Quote:
 Aww fuck... new answer: 48÷2(9+3) = 48÷18 + 6 = 2 2/3 + 6 = 8 2/3 This is why Mathematicians hate dumb people
Fixed and I see what you did there, distribution of the terms, also valid without the adequate brackets.

Edit: see? In the reply box a2 was perfect, and when I posted, it became a2. So yeah, it's a^2.
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Last edited by Numinous; 04-08-2011 at 12:45 PM.

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04-08-2011, 12:40 PM   #43
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Re: 48÷2(9+3) = ??

Quote:
 Originally Posted by AkamaruChewtoy What - have you not taken factoring? Replace 2 with X 48÷x(9+3) It's one term because it's connected to the bracket which MUST be dealt with first. The question you are after is do you drop the brackets once you add. I would say no, again, based on what I was taught. 2(9+3) or 2(12) is still one term and can be treated as such. In any case, I'm convinced you're just trolling now.
so you agree with the juxtaposition, but you simply said that you would set it as the demoninator becuase of the division sign, thats a completely different scenario.

04-08-2011, 12:42 PM   #44
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Re: 48÷2(9+3) = ??

Quote:
 Originally Posted by AkamaruChewtoy The way I was taught, when you use the division sign, it is the same as saying: 48/2(9+3) Everything after it is in the denominator.
thats wrong, only if its 1 term

 04-08-2011, 12:43 PM #45 ACt Heart Wizard     Join Date: May 2009 Location: The Halls of Irreverence Posts: 3,218 Thanks: 5,287 Thanked 18,546 Times in 4,823 Posts Re: 48÷2(9+3) = ?? AF - I forget if you ever said, what do you do for a living? EDIT: @ Num - no, I think it is just people in general. EDIT2: AF again - I was talking specifics - this case the equation you provided. The equation you've given is linked by division, multiplication and brackets. I put the division sign as the way to orient the whole equation properly. I was not saying "IN ALL MATHEMATICS..." because I'm not stupid. You are just looking for errors so make yourself the big man - go away, your trolling is not wanted. Besides, has it ever occured to you, or anyone, that the set up to this whole thing is "500 of 1000" got this wrong when there are two answers? Yeah, so believable. I call for thread closure. __________________ I've become A simple souvenir of someone's kill And like the sea I'm constantly changing from calm to ill Madness fills my heart and soul as if the great divide could swallow me whole oh, how I'm breaking down Last edited by ACt; 04-08-2011 at 12:49 PM.
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