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Mathematics, 13.10.2020 23:01 gissellebramwell

obtain all the zeroes of the polynomial x4 -4x2 -4x -1 if two of its zeros are 1+√2 and 1-√2. I need answer quick.

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obtain all the zeroes of the polynomial x4 -4x2 -4x -1 if two of its zeros are 1+√2 and 1-√2. I need...
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