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This discussion has been closed.

## Replies

7,092✭✭✭A thread that's not about sex and/or some other dumb shit doing numbers in GnS >>>>>>

Let's talk about derivatives next....cause I has homework to do on it.

So, how do we find them?

For example, what is the derivative of: f(x)=(x+2)(x-1)(x+3)?

So, derivative?

7,092✭✭✭nevermind...figured it out.....8,636✭✭✭✭✭SMH at niggaz not knowing PEMDAS

81✭8,636✭✭✭✭✭Can we call this post a fail?

2,989✭✭✭✭✭8,636✭✭✭✭✭It's clear as it stand. You have to follow the order of operation. Parenthesis go first. There are no exponents so the next step woul be to multiply then divide.

10,202✭✭✭✭✭This is where people are mistaken also.

MD in P E MD AS are the same tier. You work this left to right. If a division component of a problem is there before a multiplication component, then you work the division first. You dont ALWAYS work multiplication first. In school problems are probably written as to not have this type of scenario matter however.

The ambiguity of the problem lies SOLELY in whether the (9+3) is part of the denominator. The symbol used in the problem is what should determine this, but because we dont know the intent (other than to troll the internet) of the person who created this problem there are 2 possible answers. Anyone claiming people stupid in favor of one answer or the other probably doesnt understand what I just said.

26,678✭✭✭✭✭3,995✭✭✭2,989✭✭✭✭✭Exactly this..... You just don't jump to the middle of a problem just because you see a multiplication sign. Like reading a book, do you just jump to the verbs because they show action and you want to find out what's going on? Hell no. There's more to this than some numbers on a page. Any other information would be useful. A situation, idk maybe some units, hell, show work on how you got to this point of the problem. There could easily be an mistake then we'd all be looking stupid, ready to go to war trying to solve a problem with a built in error.

8,636✭✭✭✭✭Also if you write the problem as

48

_______

2 (9+3)

10,202✭✭✭✭✭The question seems designed specifically to spark these arguments. Its not a question one would see on a test because it is poorly written. You are right about the distribution. But thats not in question with the problem. If its ( 48 over 2 ) all multiplied by (9 + 3 ) distribution does not apply. If its (48) over 2(9 + 3) then distribution applies.

8,636✭✭✭✭✭5422. 48/2(12) ... starting on left resolve first division or multiplication this leads too

3. 24(12) ... starting on left resolve first division or multiplication this leads too

4. 288

The 2s presented on images of calculators are mistakes and bugs in their code

If the OP wanted the answer to be 2 this equation would be needed

48/(2(9+3))

If the OP wanted to reach 219 this would be the equation

48/2*9+3

If the OP wanted to reach 5.666... then this would be the equation

48/(2*9)+3

1,768✭✭✭You multiply number outside parenthesis with the numbers inside it which is 2x9, then 2x3. You'll get 18+6=24 then divide 48/24 to get 2.

542The numbers outside the parentheses are 48/2 or 24. you could also write it this way

24*9 + 24*3

216+ 72

288

The answer will always be 288

54248/2(9+3)

Forty eight divided by two times nine plus three or this

Fourty eight divided by two times twelve

While not the mathematical reason simple logic should get you to 288

11,139✭✭✭✭✭542I have never taken this test but have heard of it. Regardless whether I graduated high school or not the answer remains 288. This is based on simple math and understanding the process of solving a simple equation.

I believe some of the confusion, both in people and in the calculators, lie in the 2(9+3) portion of the equation. It seems this receives elevated preference over 2*(9+3) however all of these statements are mathematically equal

a(b+c)

a * (b+c)

ab+ bc

In the case of this equation a=24

8,636✭✭✭✭✭8,636✭✭✭✭✭2,989✭✭✭✭✭indeed... but to get to that point, you have to assume that the (9+3) is part of the denominator. The way the problem is written it is unclear. If the denominator were meant to be one term , a good mathematician would have written it (2(9+3)). If not it would have been written (48/2)(9+3). Thus eliminating all ambiguity. Even 48/2*12 would be more clear.

10,495✭✭✭✭✭The way you do this problem per the rules you SHOULD have learned in high school algebra is as follows:

Always process the equations inside parenthesis FIRST.48/2(9+3) = 48/2(12)

Next, process multiplication in order from left to right:48/2(12) = 48/2*12 = 48/24

Finally, process the division48/24 = 2

This is the answer.

159✭✭48÷2(9+3) IS THE SAME AS 48/2(9+3)

Yall are looking at it as if it was (48)/2(9+3) . In that case, the answer is 2.

Using the PEMDAS method, you solve what's in the parenthesis first...(9+3) = 12

Once that is done, THEY GO AWAY leaving you with...

48/2*12

from there follow PEMDAS going left to right...