SOLUTION: Solve. 2x^-4 - 5x^-2 + 2

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Question 707538: Solve. 2x^-4 - 5x^-2 + 2
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Solve. 2x^-4 - 5x^-2 + 2 = 0
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Factor:
2x^-4 - 4x^-2 - x^-2 + 2 = 0
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2x^-2(x^-2 -2) -(x^-2-2) = 0
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(x^-2-2)(2x^2-1) = 0
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x^-2 = 2 or x^-2 = 1/2
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x = 4 or x = 1/4
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Cheers,
Stan H.