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What are all the actual roots of the polynomial x^4-4x^3+6x^2-4x+1
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What are all the actual roots of the polynomial x^4-4x^3+6x^2-4x+1

User BlackShadow
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\begin{gathered} x^4-4x^3+6x^2-4x+1=(x-1)^4 \\ so,\text{ the only root is x=1 ( with multiplicity 4)} \end{gathered}

User SteeveDroz
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