Quadratic Field2

Construct elements of infinite multiplicative order in some quadratic integer rings
Solution to Abstract Algebra by Dummit & Foote 3rd edition Chapter 7.1 Exercise 7.1.24 Show that...
The order of conductor f in the ring of quadratic integers is a subring and has index f
Solution to Abstract Algebra by Dummit & Foote 3rd edition Chapter 7.1 Exercise 7.1.23 Let $D$ b...