Maths Olympiad Prep

Library / /146 of 146

, 2022

Number theory Difficulty 5.0 AIME, harder Find the answer United Kingdom

How many pairs of integers (x,y)(x, y) satisfy the equation xx+23=22y\sqrt{x-\sqrt{x+23}} = 2\sqrt{2} - y?

(A) 00 (B) 11 (C) 44 (D) 88 (E) infinitely many

Want a route through all this instead of an archive? The track puts 2,604 problems in a working order, from Junior Challenge level to the IMO shortlist.

Source: UK Mathematics Trust, licensed © UK Mathematics Trust; past papers published free at ukmt.org.uk. Statement reproduced verbatim; metadata (topic, difficulty) added by this project. Solutions are the publisher's, linked not copied.