SOLUTION: (x^4)-(3x^2)+2=0

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Question 492362: (x^4)-(3x^2)+2=0
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
(x^4)-(3x^2)+2=0
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x^4-3x^2+2=0
(x^2-2)(x^2-1)=0
(x^2-2)(x+1)(x-1)=0
x^2-2=0
x^2=2
x=±√2
..
x+1=0
x=-1
..
x-1=0
x=1
..
solutions:
x=1, -1, √2, -√2