Hey Guys,

I've never been on one of these sites before but am really stuck on an problem sheet I have been set. I'm doing fine in all my other modules but this algebra one doesn't seem to click well with me :(

Any help would be much appreciated.

So I have to prove that R is a principal ideal

domain where R is the ring {a + b(sqrt(-2)) | a,b are integers}

(by b(sqrt(-2)) I mean b multiplied by the square root of -2)

TY in advance

x