|2+\sqrt3-\sqrt7|-|\sqrt3-3|+2|\sqrt7-2|
źródło:
|2+\sqrt3-\sqrt7|-|\sqrt3-3|+2|\sqrt7-2|=
=2+\sqrt3-\sqrt7+(\sqrt3-3)+2(\sqrt7-2)=
=2+\sqrt3-\sqrt7+\sqrt3-3+2\sqrt7-4=3+\sqrt3+\sqrt7