Prove that \(\sqrt{2}+\sqrt[3]{5}\) is irrational.

The best solution was submitted by Seong min Ok (옥성민), 수리과학과 2003학번. Congratulations!

Here is his Solution of Problem 2009-23.

Alternative solutions were submitted by 정성구 (수리과학과 2007학번, +3), 심규석 (수리과학과 2007학번, +3), 이재송 (전산학과 2005학번).