Deduce from Q2 that if an integer N can be written as N = x² + ny² , and if a prime number q | N can be written as q = z² + nw² (w, x, y, z E Z), then the integer can also be written as a? + nb² ( а, bE Z).
Deduce from Q2 that if an integer N can be written as N = x² + ny² , and if a prime number q | N can be written as q = z² + nw² (w, x, y, z E Z), then the integer can also be written as a? + nb² ( а, bE Z).
Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter6: More On Rings
Section6.1: Ideals And Quotient Rings
Problem 20E: 20. If and are nonzero integers and is the least common multiple of and prove that.
Related questions
Question
Q2
for all ?,?,?,?,?∈ℤ:
(?^2+??^2)(?^2+??^2)=(??±???)^2+?(??∓??)^2.
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