SOLUTION: find all real solutions of the equation x^8 + 8x^4 = 9

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Question 704574: find all real solutions of the equation
x^8 + 8x^4 = 9
Answer by lynnlo(4176) About Me  (Show Source):
You can put this solution on YOUR website!
x=4√-9,-4√-9,i,-i,1,-1