• moriquende@lemmy.world
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        1 day ago

        Exponents come after brackets, so I’m curious to see how you solve that with your logic lol. It has an obvious correct solution, which is 128, but you need to distribute in the brackets step, which comes before exponents, so let’s see what you do with it lmao.

        • Exponents come after brackets

          That’s right

          so I’m curious to see how you solve that with your logic

          Ummm, you do the brackets and then the exponent. Not sure what you find unclear about that

          It has an obvious correct solution

          The one where you do the brackets before the exponent

          which is 128

          Nope! You can only get that by doing the exponent before the brackets, which is against the order of operations rules. Or did you wrongly add a multiply sign before the brackets - that also yields a different answer

          you need to distribute in the brackets step

          That’s right, so why did you do the exponent first?

          which comes before exponents,

          That’s right. So why did you do the exponent first?

          so let’s see what you do with it

          Brackets before exponents, as already established 🙄

          • moriquende@lemmy.world
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            24 hours ago

            Ok bro now find an expression solver that verifies your solution. I tried Wolfram Alpha, Google, and others, and they all return 128. So either you’re wrong, or all people who make these tools professionally are wrong. Not trying to be offensive, but I know where I’m putting my money.

            To be clear, the reason you’re wrong is because distribution is not part of the brackets step. Brackets are solved before exponents, resulting in 2(8)². Remove the brackets and then it’s 2*8²

            • I tried Wolfram Alpha, Google, and others, and they all return 128

              Yep, all known to give wrong order of operations answers

              So either you’re wrong

              Well, it’s not me, so…

              all people who make these tools professionally are wrong

              That’s right. Welcome to programmers writing Maths apps without checking that they have their Maths right first. BTW, in some cases it’s as bad as one of their calculators saying 2+3x4=20! 😂

              To be clear, the reason you’re wrong is because distribution is not part of the brackets step

              To be clear, I am correct, because Distribution is part of the Brackets step, as we have already established…

              Brackets are solved before exponents,

              Yes

              resulting in 2(8)²

              No, you haven’t finished solving the Brackets yet, which you must do before proceeding…

              Remove the brackets and then it’s 2*8²

              Nope! We have already established that you cannot remove the brackets if you haven’t Distributed yet

              So what we actually get is…

              2(8)²=(2x8)²=16²

              and now that I have removed the Brackets, I can now do the exponent,

              16²=256

              Welcome to you finding the answer to 2x(3+5)² - where the 2 is separate to the brackets, separated from them by the multiply sign - rather than 2(3+5)², which has no multiply sign, and therefore the 2 must be Distributed

              • moriquende@lemmy.world
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                18 hours ago

                Lmao citing yourself and assuming you’re correct and smarter than everyone who programs solvers, even those who are known to be respectable and used extensively in academia. Nothing’s been established cause you’ve cited sources that don’t support your argument, and repeating them again and again won’t make it different. Good day bro, continuing this is useless.

                • Lmao citing yourself

                  Nope! I cite Maths textbooks here, here, here, here, here, here, here, a calculator here, need I go on? 🙄 There’s plenty more of them

                  assuming you’re correct and smarter than everyone who programs solvers,

                  That’s hilarious that you think random programmers know more about Maths than a Maths professional 😂

                  even those who are known to be respectable and used extensively in academia

                  As I already stated, everyone knows the complete opposite of that about them. It’s hilarious that you’re trying to prop up places that give both right and wrong answers to the exact same expression as somehow being “respectable”. 😂 And you’ll see at the end of that thread - if you decide to read it this time - the poof that academia does not use it (because they know it spits out random answers)

                  Nothing’s been established cause you’ve cited sources that don’t support your argument

                  BWAHAHAHAAH! Like?? 😂

                  repeating them again and again won’t make it different.

                  That’s right, the Maths textbooks are still as correct about it as the first time I cited them.

                  continuing this is useless

                  Well it is when you don’t bother reading the links, which you’ve just proven is the case

                • Like how the 5 in the first image isn’t?

                  BWAHAHAHAHAHA! And how exactly do you think they got from 5(17) to 85 without distributing?? 🤣 Spoiler alert, this is what they actually did…

                  5(17)=(5x17)=85

                  They do that throughout the book, because they think it’s so trivial to get from 5(17) to 85, that if you don’t know how to do it without writing (5x17) first, then you have deeper problems than just not knowing how to Distribute 😂