2018-29.md

course	course_year	question_number	tags	title	year
Groups, Rings and Modules	IB	29	IB 2018 Groups, Rings and Modules	Paper 3, Section I, $1 G$	2018

(a) Find all integer solutions to $x^{2}+5 y^{2}=9$.

(b) Find all the irreducibles in $\mathbb{Z}[\sqrt{-5}]$ of norm 9 .