It says there's an error and wants to add a multiplication sign between 2 and the opening bracket. When I click on OK, it answers 288, which is the correct answer.

Which is why people keep getting 2. This "rule" that you have to multiply the number outside the bracket before the other multiplication/division is simply not real. Technically speaking 2(9+3) is not a real term. There is no operator between the 2 and the bracketed components, so there is no way to know what operation you have to perform. It's simply a common shorthand convention that you reduce 2*(9+3) to 2(9+3) with multiplication implied.

I don't know if people are intentionally trying to embarrass themselves, and I consider myself terrible at math by the way, one of my worst subjects and all and no I'm not one of those people where 85% is my worst subject, terrible student here:

48÷2(9+3)
48÷2(12)
aka
48÷2 x 12
24 x 12

You do brackets first, then you do it in order because it's all multiplication/division at this point 2(12) means 2 x 12

I can't believe a ton of people on the net are honestly having trouble with this question.

Quote:

Originally Posted by My Sweet Shadow

Which is why people keep getting 2. This "rule" that you have to multiply the number outside the bracket before the other multiplication/division is simply not real. Technically speaking 2(9+3) is not a real term. There is no operator between the 2 and the bracketed components, so there is no way to know what operation you have to perform. It's simply a common shorthand convention that you reduce 2*(9+3) to 2(9+3) with multiplication implied.

Exactly! Someone who actually gets it. I honestly consider myself average intelligence + below average in math. It's kind of shocking me that so many people could get this wrong or be so certain that 2 is the correct answer.

When there's a bracket, you distribute the multiplier inside it, 2(9+3) is (18+6)
48/(18+6) = 2

NO

The standard order of operations, or precedence, is expressed in the following chart.
terms inside brackets
exponents and roots
multiplication and division
addition and subtraction

you have to eliminate barket.
you begin with terms inside brackets.

48 / 2 * (9 + 3 )
48 / 2 * (12)

Bracket is eliminated
48 / 2 * 12
if you wanted to get 2

Which is why people keep getting 2. This "rule" that you have to multiply the number outside the bracket before the other multiplication/division is simply not real. Technically speaking 2(9+3) is not a real term. There is no operator between the 2 and the bracketed components, so there is no way to know what operation you have to perform. It's simply a common shorthand convention that you reduce 2*(9+3) to 2(9+3) with multiplication implied.

Yep, I really don't understand how 50% of people can get confused on this one.

Actually no one is wrong om the priorities here, it's just hard to visualize it when it's written linearly. If it's :

48 = 2
-------
2(9+3)

if it's

48
----- (9+3) = 288
2

That's essentially the point, and I am unsure if 2(9+3) is the same as 2*(9+3) in terms of order of operations. However, wolfram says the answer would be 288, and i trust them. I would've gone with 2 myself though.

Actually no one is wrong om the priorities here, it's just hard to visualize it when it's written linearly. If it's :

48 = 2
-------
2(9+3)

if it's

48
----- (9+3) = 288
2

Dude these are the types of problems (except even harder) that they'd give us in school all the time. Who cares how it's written, it's a pretty simple math problem regardless. The way it's written to me is pretty clear, I don't see why other people don't see it that way. Again I have to stress that Math is by far one of my worst subjects and I'm a barely passing student in my school days. Plus I haven't been to school in like 7 years. I still can't believe the way it's written confuses so many people. If you aren't getting 288 then clearly the people who aren't wrong about the priorities aren't in fact using them correctly.

You just follow the rules and it's pretty clear imo. Now if you want to get started talking about Logs and all that, people here would make me look like an infant haha.

That's essentially the point, and I am unsure if 2(9+3) is the same as 2*(9+3) in terms of order of operations. However, wolfram says the answer would be 288, and i trust them. I would've gone with 2 myself though.

2*(9+2) means 2(9+2) all it is really is a simplified way of saying the same thing.

That's essentially the point, and I am unsure if 2(9+3) is the same as 2*(9+3) in terms of order of operations. However, wolfram says the answer would be 288, and i trust them. I would've gone with 2 myself though.

2(9+3) is just sloppy writing of 2*(9+3). There's no such mathematical thing as an invisible operator equivalent to a multiplication but making it higher priority than other multiplication/division.