SOLUTION: x^4-5x^2+4=0

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Question 561484: x^4-5x^2+4=0
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
(x^2 - 4)(x^2 - 1)

(x + 2)(x - 2)(x + 1)(x - 1)