Poll: 6÷2(1+2)

6/2(1+2) = ?

  • 9

    Votes: 516 68.9%

  • 1

    Votes: 233 31.1%
  • Total voters
    749
Hades said:
You've gotta agree the mans got a point :D
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Didn't we already cover how it translates poorly into digital calculation? If you write it out, there's only two formats it can take - each one results in a different answer. You're still dividing 6 by the coefficient of the brackets, thus putting division before bracket resolution - you're breaking the very rules you're using to argue your point.
 
It's 9... It's still taught as 9 nowadays... None of this "only secondary schools" or "only in the 70s/80s"... I'm a 1st year at University now and a matter of months ago, they said that the priority is always brackets (i.e. only the things INSIDE the brackets - not things next to them) then powers, then multiplication and division are in order from left to right, then addition and subtraction last.
Brackets first doesn't mean 2(1+2) should be done first - it means (1+2) should be done first. The other 2 is not inside the brackets so does not have a higher priority
 
It's an ambiguous question designed to trick people. The answer is 9.

To get the answer '1' you'd have to include an extra set of brackets, as so:

6÷(2(1+2))
 
Deadbeat said:
Edit: no, that's not confusing at all. The bracket function is 2(1+2), not just (1+2). If the equation were written 6÷2x(1+2) I'd put 9 no question, but the 2 is a coefficient and not a multiple.
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No no no no no no
The bracket 'function' (quite how it's a function?) is (1+2)... the 2 just means you multiply the bracket by 2 after in the normal order. Saying it is part of the bracket function implies that 2(2+2) could equal 6 as 2x2+2=6 surely? Multiplication comes before division right, and you said that the bracket function includes the 2 multiplied by the stuff inside the brackets. But we all know that that is wrong... 2(2+2)=8
 
Deadbeat said:
Didn't we already cover how it translates poorly into digital calculation? If you write it out, there's only two formats it can take - each one results in a different answer. You're still dividing 6 by the coefficient of the brackets, thus putting division before bracket resolution - you're breaking the very rules you're using to argue your point.
Click to expand...

No I'm not. There is only one answer. Each mathematical operation has an agreed order. There is no ambiguity here.

From memory... brackets, mutliplication, division, addition, subtraction.

This results in an answer of 9. There is no other result from this.
 
scott212 said:
As far as I'm concerned there is no right or wrong answer.
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As far as you can be concerned, the sky is green. You're entitled to your own opinions but not your own facts.

The standard order of operations is:

terms inside parenthesis
exponents and roots
multiplication and division
addition and subtraction


So lets start by laying it out properly - that might make it easier to understand:

Code: 
6
- (1+2)
2

Step one: terms inside parenthesis

Code: 
6
- (3)
2

Step two: exponents and roots (nothing to do)

Step three: multiplication and division

Code: 
3(3) = 9


---


To get 1 you'd have had to start out with: 6÷(2(1+2)).

See: http://www.wolframalpha.com/input/?i=6/2(1+2)

and

http://www.wolframalpha.com/input/?i=6/(2(1+2))


Get it now?
 
Last edited:
ordinaryjoe said:
No no no no no no
The bracket 'function' (quite how it's a function?) is (1+2)... the 2 just means you multiply the bracket by 2 after in the normal order. Saying it is part of the bracket function implies that 2(2+2) could equal 6 as 2x2+2=6 surely? Multiplication comes before division right, and you said that the bracket function includes the 2 multiplied by the stuff inside the brackets. But we all know that that is wrong... 2(2+2)=8
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No idea where you're getting 6 from. Either add the internal brackets first (leaving 2(4) = 8) or multiply out the brackets ((4+4) = 8). Where do you get the 6 from?

Hades said:
No I'm not. There is only one answer. Each mathematical operation has an agreed order. There is no ambiguity here.

From memory... brackets, mutliplication, division, addition, subtraction.

This results in an answer of 9. There is no other result from this.
Click to expand...

Think I'll just leave it there.
 
Nerd rage.

P.S. The answer is 1. You don't need extra brackets. If anything you need extra brackets to get 9; (6/2)(1+2). Or are people trying to say / and ÷ are different?

P.P.S 0.9r needs more love.
 
Clown said:
Rolf...
Click to expand...

rolfharris1.jpg
 
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