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Determine U(Z[x]). (This exercise is referred to in

Chapter 12, Problem 25E

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QUESTION:

Determine U(Z[x]). (This exercise is referred to in Chapter 17.)

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QUESTION:

Determine U(Z[x]). (This exercise is referred to in Chapter 17.)

ANSWER:

Step 1 of 2

To determine .

It is known that  is a ring of polynomials with integer coefficients.

 is the set of units of the ring .

Let us consider a polynomial  and suppose  such that

           (i)

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