Current Events > 16 ÷ 2(2 + 2) = x

(+) Yeah! (+)

Lets see how many people get this wrong.

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32

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2
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Lets not.
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AngelsNAirwav3s posted...

32

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33

No wait

31

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AngelsNAirwav3s posted...

32

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Can we not make this another 100+ post topic please?

32 is the only correct answer, but if we're going to do this topic for the hundredth time, can we use a different format other than a b(c + d)? All of these stupid problems are written that way, be more creative.


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x=32

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How is anyone getting 32?

X=162(2+2)
X=162(4)
X=168
X=2

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32

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PEMDAS

1. Parentheses
2. Exponents
3. Multiplation/Division. If there are multiple, then you start from the left and work your way across. Multiplication and division are treated equal.
4. Addition/subtraction. Also treated equal to each other.

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No right answer. Can be 2 or 32 depending on what your style considers to be resolving parentheses.

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SierraDawn posted...

How is anyone getting 32?

X=162(2+2)
X=162(4)
X=168
X=2

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BroodRyu posted...

Can we not make this another 100+ post topic please?

SierraDawn posted...

How is anyone getting 32?

X=162(2+2)
X=162(4)
X=168
X=2

16 2(2 + 2)
16 2 (4)
8 (4)
32

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Generally, the equation would be written as:

X= _16__
2(2+2)

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Murican education lmao

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SierraDawn posted...

Generally, the equation would be written as:

X= _16__
2(2+2)

Which makes the answer 2.

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Incorrect

It's written as 16 2(2 + 2) not 16 (2(2 + 2))

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Topic creator made no effort to indicate a fraction. Must solve as presented. Problem is solved with PEMDAS left to right. Answer is 32.

MrFingers07 posted...

16 2(2 + 2)
16 2 (4)
8 (4)
32

You resolve the parentheses first. The 2 on the outside of the parentheses is part of the parentheses, otherwise there'd be a multiple sign.

Furthermore, generally, the equation would be written as:
_16_ =X
2(2+2)

I dont think I've ever seen an actual division sign in any algebra class I've ever taken.

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MrFingers07 posted...

16 2(2 + 2)
16 2 (4)
8 (4)
32

Both of you are right. Like I said, this is a style difference. In some styles resolving the parethesis means doing whatever is inside them, in others it means combining them with attached terms to eliminate the parenthesis also.

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Remember, you have to do anything that's inside the parenthesis first. (2 + 2) is the only thing that's inside of it so it's 4. Then it becomes 16 2 * 4. The first 2 in the 16 2(2 + 2) equation is not part of the parenthesis so you don't have to worry about that first

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2

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SierraDawn posted...

The 2 on the outside of the parentheses is part of the parentheses, otherwise there'd be a multiple sign.

Thats not true. It would have to be written like (2(2+2))

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SierraDawn posted...

The 2 on the outside of the parentheses is part of the parentheses

The 2 on the outside of the parentheses

The 2 on the outside

outside


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When you have multiplication and division at the same level you generally work left to right. It is 32.

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AngelsNAirwav3s posted...

Thats not true. It would have to be written like (2(2+2))

No, to get it your way you'd have to write it:

X=162x(2+2)

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SierraDawn posted...

No, to get it your way you'd have to write it:

X=162x(2+2)

I hope you are just trolling.

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SierraDawn posted...

The 2 on the outside of the parentheses is part of the parentheses

lol

Dakimakura posted...

I hope you are just trolling.

And I hope that no one handed you a high school diploma.

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Stop fucking writing out math problems incorrectly.


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https://www.wolframalpha.com/input/?i=16+%C3%B7+2%282+%2B+2%29+%3D+x

Says 32


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uwnim posted...

No right answer. Can be 2 or 32 depending on what your style considers to be resolving parentheses.

There's no such thing as "styles" in math. Math works only 1 way for everyone, no exceptions.

SierraDawn posted...

How is anyone getting 32?

X=162(2+2)
X=162(4)
X=168
X=2

That's the step where your wrong, 162(4) = 8(4). PEMDAS isn't a strict order, multiplication and division, same with addition and subtraction, are on the same level. So they are done left to right, always. See the paragraph above example 1, and also the last paragraph in example 3 (also see the URL that says 6th grade)

https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-arithmetic-operations/cc-6th-order-of-operations/a/order-of-operations-review

Or a more direct example, the last example in the "order of operations" section near the top:

https://www.mathsisfun.com/operation-order-pemdas.html

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Its not too late CE. You can stop arguing this same topic over and over and over and let this topic die. Please.

https://math.berkeley.edu/~gbergman/misc/numbers/ord_ops.html

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inTaCtfuL posted...

https://www.wolframalpha.com/input/?i=16+%C3%B7+2%282+%2B+2%29+%3D+x

Says 32

Do you also think Google Translate is completely accurate too?

BroodRyu posted...

Its not too late CE. You can stop arguing this same topic over and over and over and let this topic die. Please.

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LeEpicGamer posted...

Do you also think Google Translate is completely accurate too?

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only people with room temperature IQ post actual answers to these questions

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markconigliaro posted...

There's no such thing as "styles" in math. Math works only 1 way for everyone, no exceptions.

This is incorrect. We can see two different styles on display in this topic. What matters is to have an internally consistent set of rules, not the exact rules. While something simple, like say 7 multiplied by 8 is 56(in base 10) and has natural rules, the symbol used to express this operation can vary from place to place and when you combine multiple simple operations together, you need a grammar system which can also vary.
markconigliaro posted...

That's the step where your wrong, 162(4) = 8(4). PEMDAS isn't a strict order, multiplication and division, same with addition and subtraction, are on the same level. So they are done left to right, always. See the paragraph above example 1, and also the last paragraph in example 3 (also see the URL that says 6th grade)

They understand that, however, in some styles x(y) is not the same thing as x*y. The x(y) has a higher priority level.

For a good example on styles, take somthing like -4^2. In some styles that is negative four to the 2nd power and is 16. In others, it would be -16 because the - is taken to not be part of the 4, but an operation saying to flip the sign of the result. So like -4^2 is (-4)^2 in one and -(4^2) in another. Neither of them are wrong, because the grammar is arbitrary and not based on anything real and physical. So as long as the chosen way of doing things is consistently done, you end up with a coherent math system.

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