• moriquende@lemmy.world
    link
    fedilink
    English
    arrow-up
    2
    arrow-down
    1
    ·
    edit-2
    21 hours ago

    Yes, the math textbook says exactly what I said, that it’s a multiplication. There’s no mention of it being a separate operation taking precedence. The parentheses in your example are added for clarity.

    Whether you give priority to juxtapositions is an open debate with the consensus being to just use parenthesis around when writing in a single line to avoid confusion. However, there is no distribution step taking precedence, as you mentioned, and the whole debate centers around whether the writer was too lazy to add parenthesis.

    • Yes, the math textbook says exactly what I said, that it’s a multiplication

      Nope, they say it’s Brackets

      5(36)=(5x36) <== Brackets

      bc=(3x4) <== Brackets

      There’s no mention of it being a separate operation taking precedence

      It’s part of the Brackets step. I have no idea what “separate operation” you’re talking about

      The parentheses in your example are added for clarity

      Nope. They are there because The Distributive Law requires them. “those who study algebra are required to make their calculations conform to these laws”.

      Whether you give priority to juxtapositions is a

      A literal Law of Maths. See textbook.

      the consensus being to just use parenthesis around when writing in a single line to avoid confusion.

      No it isn’t. You won’t find any Maths textbook that says that.

      However, there is no distribution step taking precedence

      There is the Brackets step, including Distribution, taking precedence, as per Maths textbooks 🙄

      as you mentioned

      As the textbooks mention

      the whole debate centers around whether the writer was too lazy to add parenthesis

      The only debate is by people like you ignoring what is taught in Maths textbooks.

      • moriquende@lemmy.world
        link
        fedilink
        English
        arrow-up
        3
        arrow-down
        1
        ·
        18 hours ago

        Nowhere in your “proof” screenshots does it say anything about distribution being part of the brackets step. Distribution is a method that can help solve equations, but it isn’t required. If you have 2(3+5) you’re free to solve it as 2*3+2*5 or as 2*8, whichever is easiest. That is because juxtaposition means multiplication and nothing else.

        Math textbooks almost universally will either use clear brackets or simply write divisions in 2 lines, which avoids the confusion altogether.

        • 💡𝚂𝗆𝖺𝗋𝗍𝗆𝖺𝗇 𝙰𝗉𝗉𝗌📱@programming.dev
          link
          fedilink
          English
          arrow-up
          1
          arrow-down
          1
          ·
          edit-2
          13 hours ago

          Nowhere in your “proof” screenshots does it say anything about distribution being part of the brackets step

          Which step is first? Brackets. What do they do first in 5(36)/9? The Brackets.

          What does the other textbook do with bc? Puts it in Brackets. Which step is first in order of operations? Brackets 🙄 What do they end that page with? “those who study algebra are required to make their calculations conform to these laws”. You seriously need to work on your comprehension that I need to explicitly spell out to you what the textbooks say

          Distribution is a method that can help solve equations

          The Property is. The Law is a rule which literally must be obeyed, when solving expressions, as per Maths textbooks 🙄

          it isn’t required

          Yes it is! That’s why it’s a Law 😂

          If you have 2(3+5) you’re free to solve it as 23+25 or as 2*8

          Nope, neither

          1/2(3+5)=1/(6+10)

          1/2x3+2x5=3/2+10 WRONG ANSWER

          1/2x8=8/2=4 WRONG ANSWER

          Welcome to why it must be in brackets, as per Maths textbooks 🙄

          That is because juxtaposition means multiplication and nothing else

          says person who can’t cite any Maths textbook that says that. Nope! It means it’s a Term/Product, the result of a Multiplication (or Factorisation), and nothing else…

          Note that it never used the word Multiplication at all in that definition 🙄

          Math textbooks almost universally will either use clear brackets or simply write divisions in 2 lines

          or an obelus or slash on one line

          which avoids the confusion altogether

          Only people who don’t remember the rules of Maths are confused about it. Students have no trouble with it.

            • Here is math for kids

              Yep, that’s about The Distributive Property too 🙄 Every time Multiplication gets mentioned, you know they’re talking about the Property, since the Law has no multiplication in it, but The Distributive Property of Multiplication over Addition does

              Distributive law means you are allowed to distribute

              No, the Property does. The Law tells you that you literally must Distribute.

              not that you must distribute

              Because The Law says that, hence why it’s a Law 🙄

              I’m so sorry for the amount of effort you’re futilely putting into this lmao

              says someone who can’t even tell the difference between the Property and the Law 😂

              Nowhere in all your sources and screenshots is it stated you must distribute

              Yes it does liar

              thus the entire argument breaks down

              Not for people who know how to read 😂

              • moriquende@lemmy.world
                link
                fedilink
                English
                arrow-up
                3
                arrow-down
                1
                ·
                11 hours ago

                You must not distribute brother, lay it to rest lmao. It’s optional. Google distributive law and find me one source saying it’s imperative to distribute - there’s none. You can even confirm this is true yourself with simple examples like the ones I’ve mentioned above.

                • You must not distribute brother

                  Literally a Law of Maths, but go ahead and stay in Denial about it 😂

                  It’s optional

                  You think the word “must” means it’s optional?? 😂

                  Google distributive law and find me one source saying it’s imperative to distribute

                  Go through Maths textbooks and find me one which says it isn’t, or alternatively go through dictionaries and find me one that says “must” means “optional” 😂

                  there’s none

                  He says, when I’ve already posted multiple textbooks which say it is 😂

                  You can even confirm this is true yourself with simple examples like the ones I’ve mentioned above

                  I’ve confirmed it with Maths textbooks - you know, those things you refuse to look in because you know they prove you are wrong 😂 BTW your “example above” was about The Distributive Property, as I already pointed out to you at the time