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  3. let ? ? c be a zero of the polynomial t^3 ? 4t + 2

let ? ? C be a zero of the polynomial t^3 ? 4t + 2...

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Advance Math

let ? ? C be a zero of the polynomial t^3 ? 4t + 2 = 0 and let R= {a1 + b? + c?^2 : a,b,c ? Z}. Show that R is a integral domainand

Show that ? ? 1 and 2? ? 1 are units in R. [Hint: what if x = t+ 1?

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Integral domain    See Answer
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