SOLUTION: please assist me in solving this problem by using the quadratic formula x2-x+1=0

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Question 82146This question is from textbook
: please assist me in solving this problem by using the quadratic formula
x2-x+1=0
This question is from textbook

Answer by Edwin McCravy(6937) About Me  (Show Source):
You can put this solution on YOUR website!
please assist me in solving this problem by using the quadratic formula
x² - x + 1 = 0


         x² - x + 1 = 0

Use the quadratic formula:
                  ______ 
            -b ± Öb²-4ac
        x = —————————————
                2a 

where a = 1; b = -1; c = 1

                      _____________
             -(-1) ± Ö(-1)²-4(1)(1)
        x = ————————————————————————
                     2(1) 
                  ___ 
             1 ± Ö1-4
        x = ———————————
                 2

                  __ 
             1 ± Ö-3
        x = ———————————
                 2 

                   _ 
             1 ± iÖ3
        x = ——————————
                 2 

                   _ 
             1 ± iÖ3
        x = —————————
                 2 

                     _
             1     iÖ3
        x = ———— ± ——————
             2       2

                    _
             1     Ö3
        x = ——— ± ————i
             2      2

Using the +

x = 1%2F2 + %28sqrt%283%29%2F2%29i

Using the -

x = 1%2F2 - %28sqrt%283%29%2F2%29i

Edwin