[tex]Q=\sqrt{\sqrt{2}+2\sqrt{\sqrt{2}-1}}+\sqrt{\sqrt{2}-2\sqrt{\sqrt{2}-1}}[/tex]
[tex]Q=\sqrt{\sqrt{2}-1+2\sqrt{\sqrt{2}-1}+1}+\sqrt{\sqrt{2}-1-2\sqrt{\sqrt{2}-1}+1}[/tex]
[tex]Q=\sqrt{(\sqrt{\sqrt{2}-1}+1)^2}+\sqrt{(\sqrt{\sqrt{2}-1}-1)^2}[/tex]
[tex]Q=\sqrt{\sqrt{2}-1}+1-\sqrt{\sqrt{2}-1}+1=2[/tex]