Відео

Really ?

Yeah

Three solutions

Really?

Really ?

Really ? What is your answer ?

Surgeon?

Really ?

Good

Yeah

Really?

@@abednego45 yeah

Really ? How about 6÷2(1+2) 3(1+2) 3(3) 3 x 3 9.

@@abednego45 no It’s 6 ---- 2(1+2) The 2 is with the parentheses

Really ? You think so .? What is your conclusions is the answer 1 or 9 ?

@@abednego45 Read my comment again, try to understand it and then realise that the exercise is pointless. The only time you would get a question llike this is in an exam, not in a real mathematics calculation.

Ok ooooooo

Really ? Consider 6 ÷2(1+2) = 3(1+2) 3(3) 3 x 3 9. Check it

nope everything inside the brackets are evaluated anything outside the bracket is just a multiply so its 9

Really ?

Really ! Now consider 6÷ 2(1+2) 6÷ 2(3) 6÷6 1 How about that ?

@@abednego45 You first solved 2*3, so started on the right. But in the western world we solve expressions from left to right, so 6÷2 comes first, no matter how many spaces you put after the ÷ to irritate people. The whole thing should be written (6:2)x(1+2) in the first place to make the intention even clearer.

Wow nice

You inserted a * which isn't there, changing the order of operation. Algebraically, 2a ÷ 2a =1 always. Your erroneous approach will give a^2.

@@leongchunnam1569 There are no variables in the given "problem". Replace your 'a' with a number, e.g. 3, and you get 2*3÷2*3, which is 9. The function you assume here is different and would be written like this: 2a ---- 2a Ask any mathematician or google for the correct answer - I'm out of here.

What is your answer ?

Really ?

Consider 6÷2(1+2) 3(1+2) 3(3) 9 🤷🤷🤷

Mathematics rule is universal

@@abednego45 Mathematical properties are universal, but notation and conventions are not. This particular example is a common debate because it is a slight difference between two major english speaking countries, but many of other countries represent things in different ways. Some represent place value right to left instead of left to right, some use different bases (although that is much less common now), and don't get me started on the difference between commas placements and decimals notations.

Ok nice opinion 👏

Some persons says that the answers can be 1 and 9 at the same time , How about that ??

Consider 6÷ 2(1+2) 6÷ 2(3) 6÷6 1 Check it

@@abednego45 There has to be one and only one convention, and that is: (1) resolve parethetical expressions left-to-right using hierarchical rules, and then perform operations according to the hierarchical rules: exponentiation, mutiplication and division, and the addition and subtraction.

@@abednego45 That violates the order of operations. Multiplication and division are on the same level, so you go left to right.

BODMAS says bracket first !

-4² is -16

@@abednego45 no it is 16 because if we square minus sign also changes

@monarchofall there is difference between -4² and (-4)² -4² = - 4 x 4 = -16 while (-4)² = -4 x -4 = +16 or 16

Really?

Really?

Nice 🏂🏂🏂

Really?

pemdas forgets to mention the left-to-right rule when operations have equal precedence, then this is superseded by juxtaposition which is between exp/log and mul/div, it's slightly stronger than mul/div and left-to-right. this was agreed so that there is shorthand way to express intent concisely without littering parenthesis, pemdas is the worst thing that has happened to mathematics teaching because it trivializes and forgets to explain every rule.. if you just follow it confusion erupts

@n00blamer exactly

@@abednego45 It's kind of ridiculous now as you can even ask some PhD maths guy and he says "oh well it was changed at somewhere along the way" so it comes down to who you ask... ridiculous.. luckily I am already old and don't have to see this crap more than 50 years more, tops.. =D

@n00blamer 😀😀😀😀 Some says there answer is 1 and 9

Really?

Really?

Really? Watch the video to the end,

you're telling on yourself

@technology4617 what is your answer ??

Really

@@abednego45he is correct

It is dividing only by 6 not 12

Really?

What complete video

@@abednego45 i already told you that’s not how it works

Explain how it works ?

Nice observations

Addition can be done left to right Or from right to left It just that we are used to carrying out operations from left to right

@@abednego45 Correct, but the error is not in the addition, but in the division and multiplication. Let me explain better; in a succession of additions / multiplications you can do everything from the right or from the left indifferently Example: 4 + 7 + 5 = 11 + 5 = 16 4 + 7 + 5 = 4 + 12 = 16 4 • 7 • 5 = 28 • 5 = 140 4 • 7 • 5 = 4 • 35 = 140 But if you do this with subtractions and divisions, you find an error Example: 4 - 7 - 5 = (-3) - 5 = -8 4 - 7 - 5 = 4 - 2 = 2 (ERROR) 4 ÷ 7 ÷ 5 ≈ 0.571 ÷ 5 ≈ 0.114 4 ÷ 7 ÷ 5 = 4 ÷ 1.4 ≈ 2.857 (ERROR) This can make you understand that if you mix multiplication and division as in the expression you solved, you cannot solve the everything from right to left except if you use the fraction notation instead of the classic division symbol, so in that case, taking up the expression that you got wrong, we find ourselves in the second resolution method that I explained in the other comment. P.S. Sorry if I'm only replying now but youtube sent me a notification of your reply today.