6÷2(1+2)=? - Topic

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Apr 28 2011 06:18pm

Just because 2 is next to (3) in parenthesis doesn't mean it gets multiplied first.

6/2(3) is treated as 6 / 2 x 3, not 6 /( 2 x 3)

LeB

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#22

Apr 28 2011 06:19pm

Quote (Mateoblast @ Apr 28 2011 07:13pm)

Okay, Mathematician reporting in.

Everyone answering 1 is a fag and should go back to first grade.

6 / 2 * (1+2) = x
6 / 2 * 3 = x
3 * 3 = x
9 =x

Divisions aren't done after multiplications; they're done at the same time, in a left to right order.

holy shit mathematician you can do order of operations

whats that like grade 5 rofl

3y908ryahiufhaisouhfdaoisjdkanho

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#23

Apr 28 2011 06:19pm

9

you should jump off a cliff if you think it's 1

6÷2(1+2)=

=

6÷2 *3=??

left to right

6÷(2(1+2))=

THIS is the only way you would get 1

which is changing the problem.

Mateoblast

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#24

Apr 28 2011 06:19pm

Quote (Mastersam93 @ Apr 28 2011 08:16pm)

that's exactly what I thought

but his proof seems to make sense

now i'm just trying to think if it's actually illogical to sub in x for 1 in some way

like, when x = 2, X^2 = 4, but that doesnt mean y always equals 2x, like in his proof it just happened to also equal 1.

Actually he did it wrong : It should be 6/2(x+2)=9 then 3(x+2), because of the operation order

Quote (xrmd @ Apr 28 2011 08:17pm)

http://i56.tinypic.com/6q9reo.png

Seriously...

Rofl you suck, it's 6 / 2 * 3, and not 6 / (2*3)

Mateoblast

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#25

Apr 28 2011 06:20pm

Quote (LeB @ Apr 28 2011 08:19pm)