proble with ti nspire cx cas [closed]












-2












$begingroup$


So i enter a some basic algebra on my calculator 



24xy/(27x^(-2))÷(36x^2 y^(-2))/(45xy^4)


screenshot of problem



my pronlem is that, this is a wrong answer the correct answer should be $$dfrac{10x^2 y^8}9$$



and I get $dfrac{10x y^8}9$ on the calculator, I also check it by hand and on the computer as you can see on the screenshot my question is why I'm getting that answer on the calculator.






algebra-precalculus







share|cite|improve this question











$endgroup$



closed as off-topic by Morgan Rodgers, Lord Shark the Unknown, user10354138, KReiser, Jyrki Lahtonen Dec 2 '18 at 8:40


This question appears to be off-topic. The users who voted to close gave this specific reason:


  • "This question is not about mathematics, within the scope defined in the help center." – Morgan Rodgers, Lord Shark the Unknown, user10354138, KReiser, Jyrki Lahtonen

If this question can be reworded to fit the rules in the help center, please edit the question.


















    -2












    $begingroup$


    So i enter a some basic algebra on my calculator 



    24xy/(27x^(-2))÷(36x^2 y^(-2))/(45xy^4)


    screenshot of problem



    my pronlem is that, this is a wrong answer the correct answer should be $$dfrac{10x^2 y^8}9$$



    and I get $dfrac{10x y^8}9$ on the calculator, I also check it by hand and on the computer as you can see on the screenshot my question is why I'm getting that answer on the calculator.






    algebra-precalculus







    share|cite|improve this question











    $endgroup$



    closed as off-topic by Morgan Rodgers, Lord Shark the Unknown, user10354138, KReiser, Jyrki Lahtonen Dec 2 '18 at 8:40


    This question appears to be off-topic. The users who voted to close gave this specific reason:


    • "This question is not about mathematics, within the scope defined in the help center." – Morgan Rodgers, Lord Shark the Unknown, user10354138, KReiser, Jyrki Lahtonen

    If this question can be reworded to fit the rules in the help center, please edit the question.
















      -2












      -2








      -2





      $begingroup$


      So i enter a some basic algebra on my calculator 



      24xy/(27x^(-2))÷(36x^2 y^(-2))/(45xy^4)


      screenshot of problem



      my pronlem is that, this is a wrong answer the correct answer should be $$dfrac{10x^2 y^8}9$$



      and I get $dfrac{10x y^8}9$ on the calculator, I also check it by hand and on the computer as you can see on the screenshot my question is why I'm getting that answer on the calculator.






      algebra-precalculus







      share|cite|improve this question











      $endgroup$




      So i enter a some basic algebra on my calculator 



      24xy/(27x^(-2))÷(36x^2 y^(-2))/(45xy^4)


      screenshot of problem



      my pronlem is that, this is a wrong answer the correct answer should be $$dfrac{10x^2 y^8}9$$



      and I get $dfrac{10x y^8}9$ on the calculator, I also check it by hand and on the computer as you can see on the screenshot my question is why I'm getting that answer on the calculator.






      algebra-precalculus




      algebra-precalculus






      share|cite|improve this question















      share|cite|improve this question













      share|cite|improve this question




      share|cite|improve this question








      edited Dec 2 '18 at 7:27









      Tianlalu

      3,08121038




      3,08121038










      asked Dec 2 '18 at 0:16









      lcrimsonllcrimsonl

      1




      1




      closed as off-topic by Morgan Rodgers, Lord Shark the Unknown, user10354138, KReiser, Jyrki Lahtonen Dec 2 '18 at 8:40


      This question appears to be off-topic. The users who voted to close gave this specific reason:


      • "This question is not about mathematics, within the scope defined in the help center." – Morgan Rodgers, Lord Shark the Unknown, user10354138, KReiser, Jyrki Lahtonen

      If this question can be reworded to fit the rules in the help center, please edit the question.




      closed as off-topic by Morgan Rodgers, Lord Shark the Unknown, user10354138, KReiser, Jyrki Lahtonen Dec 2 '18 at 8:40


      This question appears to be off-topic. The users who voted to close gave this specific reason:


      • "This question is not about mathematics, within the scope defined in the help center." – Morgan Rodgers, Lord Shark the Unknown, user10354138, KReiser, Jyrki Lahtonen

      If this question can be reworded to fit the rules in the help center, please edit the question.






















          1 Answer
          1






          active

          oldest

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          1












          $begingroup$

          Parentheses.



          "24xy/(27x^(-2) )÷(36x^2 y^(-2))/(45xy^4 )" means
          $$ frac{24xy}{frac{27x^{-2}}{frac{36x^2 y^{-2}}{(45xy^4)}}} $$



          That is, a sequence of multiplications and divisions occurs in left-to-right order. An easier example:
          $12/2/2/3 = 1$



          What is shown on your calculator is
          $$ frac{frac{24xy}{27x^{-2}}}{frac{36x^2 y^{-2}}{45 xy^4 }} $$
          which can be obtained by parenthesizing your original string: "(24xy/(27x^(-2) ))÷((36x^2 y^(-2))/(45xy^4))".



          This should also be a reminder to not be sloppy about the width of the horizontal lines in nested divisions, since that width is the only indication about the grouping, and hence ordering, of the divisions.






          share|cite|improve this answer









          $endgroup$




















            1 Answer
            1






            active

            oldest

            votes








            1 Answer
            1






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes









            1












            $begingroup$

            Parentheses.



            "24xy/(27x^(-2) )÷(36x^2 y^(-2))/(45xy^4 )" means
            $$ frac{24xy}{frac{27x^{-2}}{frac{36x^2 y^{-2}}{(45xy^4)}}} $$



            That is, a sequence of multiplications and divisions occurs in left-to-right order. An easier example:
            $12/2/2/3 = 1$



            What is shown on your calculator is
            $$ frac{frac{24xy}{27x^{-2}}}{frac{36x^2 y^{-2}}{45 xy^4 }} $$
            which can be obtained by parenthesizing your original string: "(24xy/(27x^(-2) ))÷((36x^2 y^(-2))/(45xy^4))".



            This should also be a reminder to not be sloppy about the width of the horizontal lines in nested divisions, since that width is the only indication about the grouping, and hence ordering, of the divisions.






            share|cite|improve this answer









            $endgroup$


















              1












              $begingroup$

              Parentheses.



              "24xy/(27x^(-2) )÷(36x^2 y^(-2))/(45xy^4 )" means
              $$ frac{24xy}{frac{27x^{-2}}{frac{36x^2 y^{-2}}{(45xy^4)}}} $$



              That is, a sequence of multiplications and divisions occurs in left-to-right order. An easier example:
              $12/2/2/3 = 1$



              What is shown on your calculator is
              $$ frac{frac{24xy}{27x^{-2}}}{frac{36x^2 y^{-2}}{45 xy^4 }} $$
              which can be obtained by parenthesizing your original string: "(24xy/(27x^(-2) ))÷((36x^2 y^(-2))/(45xy^4))".



              This should also be a reminder to not be sloppy about the width of the horizontal lines in nested divisions, since that width is the only indication about the grouping, and hence ordering, of the divisions.






              share|cite|improve this answer









              $endgroup$
















                1












                1








                1





                $begingroup$

                Parentheses.



                "24xy/(27x^(-2) )÷(36x^2 y^(-2))/(45xy^4 )" means
                $$ frac{24xy}{frac{27x^{-2}}{frac{36x^2 y^{-2}}{(45xy^4)}}} $$



                That is, a sequence of multiplications and divisions occurs in left-to-right order. An easier example:
                $12/2/2/3 = 1$



                What is shown on your calculator is
                $$ frac{frac{24xy}{27x^{-2}}}{frac{36x^2 y^{-2}}{45 xy^4 }} $$
                which can be obtained by parenthesizing your original string: "(24xy/(27x^(-2) ))÷((36x^2 y^(-2))/(45xy^4))".



                This should also be a reminder to not be sloppy about the width of the horizontal lines in nested divisions, since that width is the only indication about the grouping, and hence ordering, of the divisions.






                share|cite|improve this answer









                $endgroup$



                Parentheses.



                "24xy/(27x^(-2) )÷(36x^2 y^(-2))/(45xy^4 )" means
                $$ frac{24xy}{frac{27x^{-2}}{frac{36x^2 y^{-2}}{(45xy^4)}}} $$



                That is, a sequence of multiplications and divisions occurs in left-to-right order. An easier example:
                $12/2/2/3 = 1$



                What is shown on your calculator is
                $$ frac{frac{24xy}{27x^{-2}}}{frac{36x^2 y^{-2}}{45 xy^4 }} $$
                which can be obtained by parenthesizing your original string: "(24xy/(27x^(-2) ))÷((36x^2 y^(-2))/(45xy^4))".



                This should also be a reminder to not be sloppy about the width of the horizontal lines in nested divisions, since that width is the only indication about the grouping, and hence ordering, of the divisions.







                share|cite|improve this answer












                share|cite|improve this answer



                share|cite|improve this answer










                answered Dec 2 '18 at 0:27









                Eric TowersEric Towers

                32.2k22267




                32.2k22267















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