Question: In Z[sqrt 2] = {a + b[sqrt 2] a,b elements of Z, show that every element of the form (3 + 2[sqrt]) is a unit,

In Z[sqrt 2] = {a + b[sqrt 2] a,b elements of Z,

show that every element of the form (3 + 2[sqrt]) is a unit, where n is a positive integer.

Be clear, detailed. Give math rules, theorems, etc.

Thank you.

Abstract Algebra

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