6/2(1+2) = ?

yes i quoted my self and the second one is what the equation should be

 

lol guys really? Still think it's 1? Even though we've had math majors, math teachers, and drawings say the answer is 9, here's some more proof.

http://www.youtube.com/watch?v=YU5IjwugIdQ

I don't think my TI-83 is lying. I've passed quite a few tests with it.




"division symbol" and "forward slash" are the same thing, and will have the same outcome. The ONLY thing that can change this equation to make it 1, is to put more parenthesis around (2(1+2))

 

Ok, So....

I originally used the PEMDAS approach and said 1 on the poll. Used "spotlight" on my Mac to confirm:




However, I have to agree the answer is 9 now after reading that we (one lovers) are applying PEMDAS incorrectly. (And my Mac is wrong!) I didnt believe it, but read the intardwebs and yes it really is P E MD AS ... MD are done left to right order, and so are AS.

6/2(1+2)
6/2*(1+2)
Parens first
6/2*3
Multiply and divide (equal precedence done in left to right)
3*3
9

man, I HATE being wrong!

 

9

 

How come potato isn't an option?

 

Just Awesome.

 

Holy Crap people, after three days of this, dont you know the answer is Potato...damn!

 

I was under the thought that the 2(1+2) can be represented by (2)(1+2) thus being (2)(3) which is 6. Then 6/6 is equal to 1. Regarding order of ops, you must solve the 2(1+2) first as this is also (2)(1+2) you would have to distribute the 2 over what is inside of the (). Thus 2(X+1) would be 2X+1. In our example, we must solve the right half of the / first. (1+2) = 3 so we have (2)(3) which is 6. 6/6 is 1.

The () around the 2 is understood.

God I hope I am right lol.

 

No. 2(X+1) = 2(X)+2(1) = 2X+2

 

When entered into a calculator as written it returns the answer 9. BUT, calculators make mistakes sometimes.

Both are correct answers.

 

wouldnt it depend if it was
_6__
2 (1+2) making 1
orrr

_6_ x (1+2) making (3)x(3) which equals 9
2
sorry for the odd formatting but it seems like these would get two different answers?

 

Great problem, This explains why we lost the Mars lander along with the metric SAE conversion problem!!!!!!!!!


FREEKIN MATH LIES

I learned this in my 3rd year of 6th grade!!!!!!!!
Would that be my Jr. 6th grade?

Anyway it was cool driving to grade school and being the star on the flag football team!!!

 

The answer is 9...3(3)=9...you multiply the number in the () with the number outside the () which gives you 9....

 

this

I got one...

Yo necesito dormir en bedmas

 

^ odelay! idk what that means but i think it fits

 

spanglish

 

6/2(1+2)=x
x(1+2)=6/2
x(1+2)=3
1x+2x=3
x=1
another proof

 

a

 

i just tried it with an 84 and that grey calculator funny how it turns out...