Forum adverts like this one are shown to any user who is not logged in. Join us by filling out a tiny 3 field form and you will get your own, free, dakka user account which gives a good range of benefits to you: No adverts like this in the forums anymore. Times and dates in your local timezone. Full tracking of what you have read so you can skip to your first unread post, easily see what has changed since you last logged in, and easily see what is new at a glance. Email notifications for threads you want to watch closely. Being a part of the oldest wargaming community on the net. If you are already a member then feel free to login now.

48/2(9+3)=???

remember kids, show your work.

The answer is either 288 or 2 depending on which order of operations you use.

Use parenthesis more when defining functions.

Hang on, wait, I had a brain feth up. Ignore this post.

purplefood wrote:The answer is either 288 or 2 depending on which order of operations you use.

There is only one correct order. Even if you ignore correct order the answer is the same.

multiplication is NOT the top priority in algebra.
Parenthesis first. Always.
Multiplication and division are then done in order from left to right. multiplication doesn't ignore that.

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

Or if you want to do it wrong:
48/2(9+3)
24(9+3)
24*12
288

The disputed way is to multiply 2(9+3) before dividing into 48, giving you 48/24 which is incorrect.
To get 2 the equation would have to be:
48/1(2[9+3])
48/1(2*12)
48/1(24)
48/24
2

The original equation has only one set of parenthesis, and therefore follows standard procedure of parenthesis first, then left to right, doing any multiplication or division before any addition or subtraction.

Aerethan wrote:
There is only one correct order. Even if you ignore correct order the answer is the same.

Rational expression.

And we're done here.