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Math: 6÷2(1+2) = ?

 
Anonymous Coward
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01/22/2013 12:40 PM
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Re: Math: 6÷2(1+2) = ?
This is basic Algebra people. It's 1.
 Quoting: Anonymous Coward 27845368


cruise says the tard
caper_26

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01/22/2013 12:41 PM
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Re: Math: 6÷2(1+2) = ?
This is basic Algebra people. It's 1.
 Quoting: Anonymous Coward 27845368


Sure is.

Theses bozos can't even solve the following:
12x²y ÷ 4x + (6x – x)²


Nor can they solve
a ÷ 1a correctly

Nor write "six halves of n" properly
"I'm trying to free your mind, Neo. But I can only show you the door. You're the one that has to walk through it."
Forgotten

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01/22/2013 12:42 PM
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Re: Math: 6÷2(1+2) = ?
I am your college professor that you requested, with a doctorate in Mathematics. I will break this down as simply as possible and end this debate as approx. 10 students have already asked me this today.
End of debate... hopefully.
 Quoting: Anonymous Coward 944253


It would be nice if they looked at all aspects of math before solving. Nice COPY & PASTE from yahoo... On yahoo, I am a space physicist, didn't you know?
 Quoting: caper_26


Thread: 6÷2(1+2)=? SOLVED by the Professor of Mathematics at California State University [video]

Thread: 6÷2(1+2) = 9 (Page 2)


Pretty overwhelming proof.

My last post to this thread. As other threads show more info/proof on the first post. Not jumbled up over 140 pages.

Good luck "space physicist".

chuckle
Forgotten: Reach me at admin@TheGoldenRuleNow.org
caper_26

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01/22/2013 12:45 PM
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Re: Math: 6÷2(1+2) = ?
Here is how an obelus works: [link to www.freeimagehosting.net]

Here is how grouping in algebra works: [link to cstl.syr.edu]

Here is a link for those who get 9: [link to i48.tinypic.com]
"I'm trying to free your mind, Neo. But I can only show you the door. You're the one that has to walk through it."
caper_26

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01/22/2013 12:46 PM
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Re: Math: 6÷2(1+2) = ?
You bozos can't even solve the following:
12x²y ÷ 4x + (6x – x)²


Nor can you solve
a ÷ 1a correctly

Nor write "six halves of n" properly
 Quoting: caper_26


No wonder you can't evaluate this expression.
"I'm trying to free your mind, Neo. But I can only show you the door. You're the one that has to walk through it."
Anubis
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01/22/2013 01:02 PM

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Re: Math: 6÷2(1+2) = ?
according to how they teach order of ops in Canada (BEDMAS) and that DM are equivalent in precedence, then left to right order is used. i still get 9.

from: [link to math.about.com]

"There are a couple of things to remember when applying the PEDMAS/BEDMAS order of operations. Brackets/Parenthesis always come first and exponents come second. When working with multiplication and division, you do whichever comes first as you work from left to right. If multiplication comes first, do it before dividing."

based on that its 9.
caper_26

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01/22/2013 01:20 PM
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Re: Math: 6÷2(1+2) = ?
according to how they teach order of ops in Canada (BEDMAS) and that DM are equivalent in precedence, then left to right order is used. i still get 9.

from: [link to math.about.com]

"There are a couple of things to remember when applying the PEDMAS/BEDMAS order of operations. Brackets/Parenthesis always come first and exponents come second. When working with multiplication and division, you do whichever comes first as you work from left to right. If multiplication comes first, do it before dividing."

based on that its 9.
 Quoting: Anubis


Except that (2+1) is in the denominator, since 2(2+1) is a single unit
"I'm trying to free your mind, Neo. But I can only show you the door. You're the one that has to walk through it."
caper_26

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01/22/2013 01:24 PM
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Re: Math: 6÷2(1+2) = ?
consider 6 ÷ x²
x² is x(x) = x * x
So 6 ÷ x² = 6 ÷ x * x = 6 ?
No because x² = (x²)

Just like 2(2+1) = [2(2+1)], but as x², we don't need to use redundant parentheses. Some "special" people insist on using them though because they are easily confused.

scratching
"I'm trying to free your mind, Neo. But I can only show you the door. You're the one that has to walk through it."
Anubis
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01/22/2013 01:29 PM

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Re: Math: 6÷2(1+2) = ?
according to how they teach order of ops in Canada (BEDMAS) and that DM are equivalent in precedence, then left to right order is used. i still get 9.

from: [link to math.about.com]

"There are a couple of things to remember when applying the PEDMAS/BEDMAS order of operations. Brackets/Parenthesis always come first and exponents come second. When working with multiplication and division, you do whichever comes first as you work from left to right. If multiplication comes first, do it before dividing."

based on that its 9.
 Quoting: Anubis


Except that (2+1) is in the denominator, since 2(2+1) is a single unit
 Quoting: caper_26


i see your viewpoint but unless redundant parenthesis are put in then the answer is open to interpretation.

if it was 6÷(2(1+2)) = ?
then it would undeniably be 1.
Anonymous Coward
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01/22/2013 01:32 PM
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Re: Math: 6÷2(1+2) = ?
6/2(1+2)=


6/2(3)=
6/2*3=9

The only way to get 1 is to write it like this

6/(2(1+3))=


^^^^^^^
This would give 1
 Quoting: Anonymous Coward 32447952


5a
Anonymous Coward
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01/22/2013 01:33 PM
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Re: Math: 6÷2(1+2) = ?
9
caper_26

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01/22/2013 01:45 PM
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Re: Math: 6÷2(1+2) = ?
6÷2(1+2) = 1
6÷(1+2)2 = 1

(6÷2)(1+2)= 9
6(1+2)÷ 2 = 9
"I'm trying to free your mind, Neo. But I can only show you the door. You're the one that has to walk through it."
Syrius (OP)

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01/22/2013 01:46 PM
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Re: Math: 6÷2(1+2) = ?



For starters, I'm not arguing 6÷2(1+2) and 6÷2*(1+2).... Look at the post, a few pages back, that you replied to, genius.

I'm going to be blunt with you, pal. Your trolling attempts are weak and on the verge of annoying. And no, I'm not going to give you the pleasure of restating my arguments for the 7th or 8th time. There is no point.

Your oblivious mind will continue reading and interpreting my words wrong. As you have proven on at least two occasions. Personally, I can tell by your posts ALONE that you have a hard time coping with reality and continue repeating yourself with nothing new to add, the same recycled jargon. Let's be honest, what are you afraid of exactly? An empty existence, where in the light of others, you go out of your way to misquote them and pretend they are ignorant for your own sake?

Before you argue with someone, regardless of topic. Listen to their arguments instead of making shit up. It makes you look a dolt.

I really hope you find peace, and maybe some closure in your life. However, it won't be here so gtfo.
All around me are familiar faces... Worn out places...Worn out faces...
caper_26

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01/22/2013 01:51 PM
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Re: Math: 6÷2(1+2) = ?
There is no troll attempts. Only showing math laws and principles to those who do not know about them

the infamous wolfram even knows how to simplify 6 ÷ 2n. However it does not know how to substitute variables with values.

Most people: "It is 9!!!" with no explanation besides "left to right" then they convert 2(2+1) to 2*(2+1) which is incorrect. 2n = (2*n)

Failure to know that the (2+1) is part of the divisor. Which means the multiplicative inverse of it, as well as the 2, must be interpreted.
"I'm trying to free your mind, Neo. But I can only show you the door. You're the one that has to walk through it."
Syrius (OP)

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01/22/2013 01:53 PM
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Re: Math: 6÷2(1+2) = ?
There is no troll attempts. Only showing math laws and principles to those who do not know about them

the infamous wolfram even knows how to simplify 6 ÷ 2n. However it does not know how to substitute variables with values.

Most people: "It is 9!!!" with no explanation besides "left to right" then they convert 2(2+1) to 2*(2+1) which is incorrect. 2n = (2*n)

Failure to know that the (2+1) is part of the divisor. Which means the multiplicative inverse of it, as well as the 2, must be interpreted.
 Quoting: caper_26


I was quoting Forgotten, sir.

You are 1 of the few that has took the time to research all possibilities and seen the light.
All around me are familiar faces... Worn out places...Worn out faces...
caper_26

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01/22/2013 01:54 PM
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Re: Math: 6÷2(1+2) = ?
How is any of that "trolling".


Definition: In Internet slang, a troll is someone who posts inflammatory,[1] extraneous, or off-topic messages in an online community, such as a forum, chat room, or blog, with the primary intent of provoking readers into an emotional response[2] or of otherwise disrupting normal on-topic discussion

Where have I done ANY of that ??? Actually, I can find SEVERAL other people trying to do the above, not me.
"I'm trying to free your mind, Neo. But I can only show you the door. You're the one that has to walk through it."
Anubis
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01/22/2013 01:55 PM

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Re: Math: 6÷2(1+2) = ?
There is no troll attempts. Only showing math laws and principles to those who do not know about them

the infamous wolfram even knows how to simplify 6 ÷ 2n. However it does not know how to substitute variables with values.

Most people: "It is 9!!!" with no explanation besides "left to right" then they convert 2(2+1) to 2*(2+1) which is incorrect. 2n = (2*n)

Failure to know that the (2+1) is part of the divisor. Which means the multiplicative inverse of it, as well as the 2, must be interpreted.
 Quoting: caper_26


ok..

Last Edited by Anubis on 01/22/2013 01:57 PM
caper_26

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01/22/2013 01:56 PM
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Re: Math: 6÷2(1+2) = ?

I was quoting Forgotten, sir.

You are 1 of the few that has took the time to research all possibilities and seen the light.
 Quoting: caper_26


Apologies !! I was the last post, so I thought you were talking to me !!

Forgotten has banned me from his thread, because he doesn't want me converting anyone on his 9 bandwagon to 1. I am also on his "foe" list too. I find that rather amusing.
"I'm trying to free your mind, Neo. But I can only show you the door. You're the one that has to walk through it."
caper_26

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01/22/2013 02:00 PM
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Re: Math: 6÷2(1+2) = ?

ok..

what is 5(5) = ?
 Quoting: caper_26

5(5) is "five fives"

Question: what is 125 divided by five fives ?
Answer: 125 ÷ 5(5) = 5

We cannot write "55" like "2n" because it looks like fifty five.

5(5) can be evaluated [5 * 5], like distributive property

5(5 + 0) = [5(5) + 5(0)]
"I'm trying to free your mind, Neo. But I can only show you the door. You're the one that has to walk through it."
Anubis
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01/22/2013 02:12 PM

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Re: Math: 6÷2(1+2) = ?

ok..

what is 5(5) = ?
 Quoting: caper_26

5(5) is "five fives"

Question: what is 125 divided by five fives ?
Answer: 125 ÷ 5(5) = 5

We cannot write "55" like "2n" because it looks like fifty five.

5(5) can be evaluated [5 * 5], like distributive property

5(5 + 0) = [5(5) + 5(0)]
 Quoting: Anubis


125 ÷ 5(5) = ?

is the same as

125 ÷ 5 x 5 = ?

BEDMAS left to right:

25(5) = 125

Last Edited by Anubis on 01/22/2013 02:13 PM
Anonymous Coward
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01/22/2013 02:34 PM
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Re: Math: 6÷2(1+2) = ?
Looks, I don't know PEMDAS from BEDMAS even though I'm sure I learned them in elementary school or middle school math.

What I do know is writing alebraic expressions in computer programing and how they are evaluated by a computer language such as C.

When you are facing an expression that has distribution in it like 6÷2(1+2) then you must do the distributed part first and then the remainder of the equation after evaluating the distribution.

2(1+2) must be evaluated first as whole before you consider the remainder of 6÷2(1+2).

You can rewrite the equation as 6÷(2(1+2)). The second set of parenthesis is implied when you have a distribution.

You know you have a distribution because the contents inside of the parenthesis has addition in it (2+1). This means the entirety of the contents within the parenthesis must always be multiplied by what immediately precedes it to the the left on the outside of parenthesis. You don't get to do other operations such as addition, subtraction multiplication, etc before you evaluate 2(1+2).

2(1+2) = 2(3) = 6
6÷2(1+2) = 6÷(2(1+2)) = 6÷(2(3)) = 6÷(6) = 1

Now if the equation was written like this:

6÷2*(1+2)

Then you have a different story, now the parenthesis still implies distribution, but because the * symbol is there then everything to the left of the * symbol is distributed an you can evaluate everything to the left of the * as a whole first.


6÷2*(1+2) = (6÷2)*(1+2) = (3) * (3) = 9

The lack of the * symbol in the original equation makes a ton of difference about how you treat the distribution implited by (2+1).

Answer in the original equation is 1.
Anonymous Coward
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01/22/2013 03:08 PM
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Re: Math: 6÷2(1+2) = ?
Another way to think about this problem is to replace numbers with some real world examples.

6÷2(1+2)= ?

What is this mathematical expression trying to solve in the real world? A real world word problem might be the following:

]ane has a family of 6. She recently picked up two bags of fruit. In each bag of fruit there are 1 apples and 2 oranges. How many pieces of fruit does each person in her family get to eat?


When you read it that way you understand the answer is 1.

If you think the answer is 9 then your word problem is something like this:

Jane has a family of 6. She recently went shopping and gave fruit to only half the members of her family. In each bag of fruit they received there were 2 apples and 1 orange. How many apples an oranges in total did the family received?

In this case the equation would need to be written like this:

(6÷2)(1+2)

or written like this:

6/2 * (1+2)


These would make it clear that what was important was that only 1/2 the family would get bags of fruit and once you understood that have the family got fruit you could then consider what was in each bag for those family members.
caper_26

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01/22/2013 04:46 PM
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Re: Math: 6÷2(1+2) = ?
125 ÷ 5(5) = ?

is the same as

125 ÷ 5 x 5 = ?

BEDMAS left to right:

25(5) = 125
 Quoting: Anubis


Not the same. That is the problem with everyone getting 9. That is why the author wrote the equation the way it is. Anyone not well versed in maths doesn't get it, so they will swear it is 9 because of some "mnemonic". All the 1's WILL understand the implied ( ) or grouping. the 9's will not believe the 1's. Stalemate for the most part.

For example. What is 6 ÷ 6 ?
Is 6 = 2(3) ? Yes.
So 6 ÷ 2(3) = ?

6 ÷ 2 * 3 = ?

"Six divided by 2 three's is 1"
6 ÷ 2(3) = 1

"Six divided by 2 times 3 is 9"
6 ÷ 2 * 3 = 9

Math is a way of expressing real world scenarios.
"I'm trying to free your mind, Neo. But I can only show you the door. You're the one that has to walk through it."
caper_26

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01/22/2013 04:56 PM
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Re: Math: 6÷2(1+2) = ?
Looks, I don't know PEMDAS from BEDMAS even though I'm sure I learned them in elementary school or middle school math.

What I do know is writing alebraic expressions in computer programing and how they are evaluated by a computer language such as C.

When you are facing an expression that has distribution in it like 6÷2(1+2) then you must do the distributed part first and then the remainder of the equation after evaluating the distribution.

2(1+2) must be evaluated first as whole before you consider the remainder of 6÷2(1+2).

You can rewrite the equation as 6÷(2(1+2)). The second set of parenthesis is implied when you have a distribution.

You know you have a distribution because the contents inside of the parenthesis has addition in it (2+1). This means the entirety of the contents within the parenthesis must always be multiplied by what immediately precedes it to the the left on the outside of parenthesis. You don't get to do other operations such as addition, subtraction multiplication, etc before you evaluate 2(1+2).

2(1+2) = 2(3) = 6
6÷2(1+2) = 6÷(2(1+2)) = 6÷(2(3)) = 6÷(6) = 1

Now if the equation was written like this:

6÷2*(1+2)

Then you have a different story, now the parenthesis still implies distribution, but because the * symbol is there then everything to the left of the * symbol is distributed an you can evaluate everything to the left of the * as a whole first.


6÷2*(1+2) = (6÷2)*(1+2) = (3) * (3) = 9

The lack of the * symbol in the original equation makes a ton of difference about how you treat the distribution implited by (2+1).

Answer in the original equation is 1.
 Quoting: Anonymous Coward 17300078


clappa

Exactly. Most don't understand the lack of ( ) around the 6 ÷ 2 means that expression cannot be distributed. I derived both equations from scratch, using factoring (the reverse of distribution)

6 ÷ 6 = 1
6 ÷ (4+2) = 1
6 ÷ 2(2+1)= 1 Extra Parentheses not required since we know the 2 was the GCF of 4+2. You can put them in, but it is redundant, just as (6) ÷ (6) = (1) is redundant.

3 * 3 = 9
(6/2)3 = 9 Here, we NEED ( ) because we cannot write 6/23
(6/2)(2+1) = 9

There you have it. Another way:
6 + 3 = 9
(6/2)2 + (6/2)1 = 9; We can't write 6/22 + 6/21
(6/2)(2+1) = 9

There are the 2 proofs of the equations in debate.
"I'm trying to free your mind, Neo. But I can only show you the door. You're the one that has to walk through it."
Anubis
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01/22/2013 05:26 PM

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Re: Math: 6÷2(1+2) = ?
google says its 9

[link to www.google.ca (secure)]

Last Edited by Anubis on 01/22/2013 05:26 PM
Bent

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01/22/2013 05:28 PM
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Re: Math: 6÷2(1+2) = ?
To caper and other 1tards...we actually listened in school.!

yay

clappa
caper_26

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01/22/2013 05:34 PM
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Re: Math: 6÷2(1+2) = ?
google says its 9

[link to www.google.ca (secure)]
 Quoting: Anubis


No. Google changes the input: [link to i49.tinypic.com]
"I'm trying to free your mind, Neo. But I can only show you the door. You're the one that has to walk through it."
Anubis
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01/22/2013 05:38 PM

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Re: Math: 6÷2(1+2) = ?
6/2(1+2) = 9

6/(2(1+2)) = 1
caper_26

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01/22/2013 05:43 PM
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Re: Math: 6÷2(1+2) = ?
6 ÷ 6 = 1
6 ÷ (3+3) = 1
6 ÷ 3(1 + 1) = 1
6 ÷ (1+1)3 = 1

6 ÷ (4+2) = 1
6 ÷ 2(2+1) = 1
6 ÷ (2+1)2 = 1

6 ÷ 2n = 3/n
6 ÷ n2 = 3/n

1a ÷ 1a = 1 and not some retarded 1 * a ÷ 1 * a = a²
"I'm trying to free your mind, Neo. But I can only show you the door. You're the one that has to walk through it."
caper_26

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01/22/2013 08:46 PM
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Re: Math: 6÷2(1+2) = ?
Here is a real world example:

Solve:

100mm ÷ 10cm = ?
"I'm trying to free your mind, Neo. But I can only show you the door. You're the one that has to walk through it."

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