To prove we aren't all meatheads.. [cont.]

[Acclaimed|Jordan]

Received a reply from the mathematician. Discuss.

This is a PEMDAS sort of thing.

To do this carefully, be sure to be explicit with the operations involved. Here:

48 / 2(9+3) = 48/2*(9+3) = 48/2*(12) = 48/2*12 = 24*12 = 288

The confusion (I suspect) comes from the fact that when someone physically writes down an equation like this they tend to write it as a single fraction, with "48" on top and "2(9+3)" on the bottom.

However, written out in the (ungainly) text form <em>that</em> would be:

48/(2(9+3)).

Writing stuff like this gives a lot of people pause. To avoid confusing the division operation with a fraction, you can always go back to the 3rd grade way of writing division: 48÷2*(9+3)

Long story short: 288.

Let me know if that clears anything up!

[Swag]

We was right. Gf outofrange.

[Acclaimed|Jordan]

He even replied to my email with his blackberry. What a boss.

[Shut Up Kid]

i knew i was right  ^_^

edit: okay on another forum were having a kind of similar debate thing whatever

anyways, heres our problem

(9*4)-3²+9*(-6)²

the answer, 369 or 351? i say 369

[Acclaimed|Jordan]

askamathematician.com  / askamathematician@gmail.com

[Shut Up Kid]

cba im leaving in 3 mins can u do it and ill check back later ;D?

[Acclaimed|Jordan]

Yeah no prob

[Env]

i already explained this.......................

[Swag]

(9*4)-3²+9*(-6)²

B - Brackets

I - Indices

D - Division

M - Multiplication

A - Addition

S - Subtraction

Brackets first always then indices ( powers ) ;

36-9+9*36

Then multiplication , then Addition, then subtraction so ;

-297 or 297, Depending if you rearranged it or not.

Eh just did that in my head, could be wrong.

[Env]

(9*4)-3²+9*(-6)²

(36)-9+9(36)

36-9+324

351

Meathead.

[Swag]

36-9+324

351

Meathead.

Facedesk. You do addition before subtraction all the time. So what your equation should be is

36-(9+324)

36-333

= 297

[Env]

36-9+324

351

Meathead.

Facedesk. You do addition before subtraction all the time. So what your equation should be is

36-(9+324)

36-333

= 297

No.

It's not in parenthesis. With division/multiplication and addition/subtraction, order doesn't matter.

"Left to right" -True Whip

[Swag]

36-9+324

351

Meathead.

Facedesk. You do addition before subtraction all the time. So what your equation should be is

36-(9+324)

36-333

= 297

No.

It's not in parenthesis. With division/multiplication and addition/subtraction, order doesn't matter.

"Left to right" -True Whip

If it derived from an equation then I was taught it did. Also, if it doesn't matter how comes there are 2 outcomes.

[Env]

1+2-3 = 0

Order doesn't matter because addition/subtraction are inverse properties.

2-3 = 0

1+(-1) = 0

I win.

[Env]

36-9+324

351

Meathead.

Facedesk. You do addition before subtraction all the time. So what your equation should be is

36-(9+324)

36-333

= 297

No.

It's not in parenthesis. With division/multiplication and addition/subtraction, order doesn't matter.

"Left to right" -True Whip

If it derived from an equation then I was taught it did. Also, if it doesn't matter how comes there are 2 outcomes.

Where the fuck do you get these parenthesis

36-(9+324)

Think about it.

[Swag]

36-9+324

351

Meathead.

Facedesk. You do addition before subtraction all the time. So what your equation should be is

36-(9+324)

36-333

= 297

No.

It's not in parenthesis. With division/multiplication and addition/subtraction, order doesn't matter.

"Left to right" -True Whip

If it derived from an equation then I was taught it did. Also, if it doesn't matter how comes there are 2 outcomes.

Where the fuck do you get these parenthesis

36-(9+324)

Think about it.

The brackets was only placed there to show the order which I did it in.

[Env]

36-9+324

Doing addition first

-9+324 = 315

36+315 = 351

Doing subtraction first

36-9 = 27

27+324 = 351

You lost.

[Env]

36-9+324

351

Meathead.

Facedesk. You do addition before subtraction all the time. So what your equation should be is

36-(9+324)

36-333

= 297

No.

It's not in parenthesis. With division/multiplication and addition/subtraction, order doesn't matter.

"Left to right" -True Whip

If it derived from an equation then I was taught it did. Also, if it doesn't matter how comes there are 2 outcomes.

Where the fuck do you get these parenthesis

36-(9+324)

Think about it.

The brackets was only placed there to show the order which I did it in.

When you write it like 36-(9+324), you're placing a negative on the whole (9+324) when it really only affects the 9. -9+324.

[Swag]

36-9+324

Doing addition first

-9+324 = 315

36+315 = 351

Doing subtraction first

36-9 = 27

27+324 = 351

You lost.

Looks like I lost. Time to ask maths genius. Fair play Env. Fair play  :shifty:

[Env]

SWEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEET

VICTORYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY

[Swag]

SWEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEET

VICTORYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY

I believe we should share the victory cake, I put up a valid argument.  :embarrased:

[Acclaimed|Jordan]

You guys are all wrong its 1296 see.

(9*4)-3^2 + 9*(-6)^2

(36)-9 + 9(36)  27+9(36)

(36)(36) = 1296  27+324

351

[Env]

SWEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEET

VICTORYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY

I believe we should share the victory cake, I put up a valid argument.   :embarrased:

Perhaps.

[Shut Up Kid]

i think its 369 lol, it should be +9 not -9

[Env]

i think its 369 lol, it should be +9 not -9

it would be +9 if it was (-3)^2 not -3^2