I can't believe how much controversy this equation generates. I feel sorry for you if you can't get this.
6÷2(1+2) = ?
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6

Oops 9

It is technically ambiguous by some rule or some other rule. If you put multiplication before division, its 1. Intentionally written to obfuscate and be ambiguous so it doesnt make someone dumb or wrong to think it's something else.

Bodybuilding.com already waged this war a decade ago. Different expression, same principle.

This just reminded me of all the stupid s@#$ I learned in high school that has no real world application for me and 99% of my peers.

seriously tho wrote:
It is technically ambiguous by some rule or some other rule. If you put multiplication before division, its 1. Intentionally written to obfuscate and be ambiguous so it doesnt make someone dumb or wrong to think it's something else.
PEMDAS. There is only one rule......... You go left to right for multiplication or division after you have solved the parentheses and exponents..... 
as a matter of fact wrote:
seriously tho wrote:
It is technically ambiguous by some rule or some other rule. If you put multiplication before division, its 1. Intentionally written to obfuscate and be ambiguous so it doesnt make someone dumb or wrong to think it's something else.
PEMDAS. There is only one rule......... You go left to right for multiplication or division after you have solved the parentheses and exponents.....
The thing they're trying to trick you on is that PEMDAS isn't multiplication, then division, then addition, then subtraction. Rather it is multiplication and division, then addition and subtraction, left to right.
If you apply PEMDAS incorrectly, you'll multiply first, then divide. If you use it correctly, you'll go left to right and do 6/2 first, then multiply.
6/2(1+2)
6/2(3)
3(3)
9 
as a matter of fact wrote:
PEMDAS. There is only one rule......... You go left to right for multiplication or division after you have solved the parentheses and exponents.....
Common mistake. There is no such thing as a left to right rule for multiplication/division (they are the same thing) or addition/subtraction (again they are the same thing) due to the commutative property. 
as a matter of fact wrote:
seriously tho wrote:
It is technically ambiguous by some rule or some other rule. If you put multiplication before division, its 1. Intentionally written to obfuscate and be ambiguous so it doesnt make someone dumb or wrong to think it's something else.
PEMDAS. There is only one rule......... You go left to right for multiplication or division after you have solved the parentheses and exponents.....
"As a matter of fact" you're wrong, hence my comment.
Intentionally written to be fairly interpreted in more than one way. 
The answer is 1. I would bet all your money on it. You start with the parenthesis and then work your way out. The only confusion is you have to multiply before the division as the numerator is already solved.

This is why nobody uses that division sign. Use / instead and you'll get used to not assuming everything after is the denominator in the absence of parentheses.

1
But i could be wrong.
I hope thee is an authority at our disposal.
Disclosure: I trust science! 
Ok, I looked it up and there is a very good You Tube video on it.
I won't spoil it.
Pretty neat. 
I've got a good math one.
Differentiate the following.
y = (3/2)Bkle^2
What is dy/de 
seriously tho wrote:
It is technically ambiguous by some rule or some other rule. If you put multiplication before division, its 1. Intentionally written to obfuscate and be ambiguous so it doesnt make someone dumb or wrong to think it's something else.
seriously tho is correct.
Whether or not to use multiplication by juxtaposition or not is unclear in this situation. It isn't well defined. The order of operations rules apply when every operation is written out, but when one of the operations is removed, the rules no longer apply.
For example, if we write 12x / 2x, I clearly intend that to be 6. If I write it with the division symbol, the same assumption will usually be made.
If you read https://mathworld.wolfram.com/Solidus.html, you'll see that Wolfram indicates that their symbolic processing will add a multiplication operator between adjacent terms, then use order of operations as we're used to them, even though most written math does not mean that.
If you use Maple, it doesn't accept implicit multiplication and forces the * operator to be written in; again, this is to avoid any ambiguity of written expression. 
Banana Bread wrote:
I've got a good math one.
Differentiate the following.
y = (3/2)Bkle^2
What is dy/de
Does this involve running? 
Banana Bread wrote:
I've got a good math one.
Differentiate the following.
y = (3/2)Bkle^2
What is dy/de
What is d/nf? 
its clear as day wrote:
I can't believe how much controversy this equation generates. I feel sorry for you if you can't get this.
I thought the very post would have the answer but this is said.
The answer is 1.
Equation: 6 / 2(1+2)
Parenthesis > (1+2) = (3), equation is now 6 / 2(3)
Exponents > none
Multiplication > 2(3) =6, equation is now 6/6
Division > 6/6 = 1
Addition > none
Subtraction > none
Answer is 1 as shown above. 
Sad*