Page 51 - Complex numbers
P. 51

2
               3
        4  4   − 8   + 6   − 2
              =4=z8=6=z2==







                       =                                  n






                       =                                  n





        A plot of the function is shown below,





















        As you can see the function passes through the x-axis

        when x = 1, the real root.

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