Eread is right everyone thinks its 48/2x12 but ITS NOT its 48/2x(12) and you always solve ( ) first so everyone who think its 288 you are wrong you cant just remove ( ) and do the multi and div without them.
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Wolfram is using a different order of operations to the calculator. Both are consistent with their own standards.
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This is correct. 48/2(9+3) = (48)/(2(9+3)), not (48/2)(9+3) in case that's what you were thinking.
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Yes. The calculator uses a different convention, where multiplication comes first, rather than the common one which you were taught in school.
edit: Just looked in the user's manual. Explicit multiplication and division are at priority 9, whereas implicit multiplication is considered priority 5.
OP, try 48/2*(9+3) and you should get 288 if the calculator follows its own rules.
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That depends on the convention that you choose, but usually multiplication takes precedence. In the absence of a convention the expression is ambiguous and requires more parenthesis.
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I don't know what your saing (i don't know english words of math) but it's rule of priority, so first and always are brackets then are the rest. Maybe i wrote something wrong but I wanted to split that.
And some caculators don't split, and are doing the actions in sequence.
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does no one remember PEMDAS? Parentheses, Exponents, Multiply/Divide, Add/Subtract
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Ignoring the fact that the problem itself is poorly written, which is the source of the confusion...
The rules are, parentheses first,then exponents, then multiplication, then addition (division and subtraction are just different forms of multiplication/addition).
So
-48/2(9+3)
-2. 48/212
-3. 24 12
-4. 288.
The calculator reporting 2 you should scrap.
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Booth is possible:
(48 / 2) (9 + 3) -->
48 / 2 = 24
24 (9 + 3) = 288
48 / (2 (9 + 3)) -->
2 (9 + 3) = 24
48 / 24 = 2
By the way the formula is displayed it could be interpreted booth ways!
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First thing to do is math in brackets, so it will end up being 48/2*12.
No more extra brackets and you can't add your own. It changes sh!t!
Now you have to do two operations of equal level. Hence you go from left to right.
You get 288.
Love the idea of my first post here being about maht. :-P
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how did the ( ) suddenly disappear? you dont remove them you solve them first.
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I’m a math professor, and my view is that although the standard convention, if applied precisely and rigorously, does give an unambiguous procedure to follow, nobody, and that includes professional mathematicians, would ever write a formula like this. This is mostly because, after about 3rd grade, none of us ever use the division symbol ever again.
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Dude, you haven't input them right. As you know there are sign for multipliyng, divinding and so on... On both calculators you haven't entered nothing except divinding.
On the first calculator it calculated this:
48 dividing by 2 multiplying by 12. Here is it :
(48/2 )(9+3)= 2412 = 288
on the other it's 48/[2(9+3)] = 48/[212]=48/24=2
Are you one of the 1+1*0=0 guys or you just are ripped off too much for the second calculator?
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The calculator with "2" shows the result for 48/[2(9+3)]=48/(29)+(23)=48/(18+6)=48/24=2.
The calculator with "288" shows the result for (48/2)(9+3)=(24)(9+3)=(249)+(24*3)=216+72=288.
This is why in math you use the fraction,to avoid confusion caused by the "/" sign.
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its 288.
Order of Operations: Parenthesis, Exponents, Multiplication/Divison(left to right), Addition/Subtraction(left to right)
48/2(9+3)--> 48/2(12) (parenthesis first. no exponents, so we go straight to multiplication/division. whichever is first on the left side is calculated first)
48/2(12)--> 24(12)--> 288.
The answer would only be 2 if the equation was set up like this instead--> 48/[2(9+3)].
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Peter Eats Moldy Doritos And Salsa, people!
It is 288. There's reasons I don't trust calculators for everything.
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lol i dont get whats so hard here its simple math... just to you who forgot ill make it fast and simple:
( ) are top priority so solve it first you get 9+3=12 yeah than you have 48/2(12) kay and you SHOULD know ( ) comes before Multiplication and Division so first you do 2*(12) and not 48/2 cus you have to solve the ( ) yet you get it? easy whats so hard here problem solved.
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OMG whats so hard to understand ITS NOT 48:2x12 ITS 48:2x(12) and you solve the ( ) first pfft.
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Thoughts?
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