\(=\left(6\sqrt{2}-6\sqrt{2}+6\sqrt{2}\right):\sqrt{2}=6\sqrt{2}:\sqrt{2}=6\)
\(=\left(6\sqrt{2}-6\sqrt{2}+6\sqrt{2}\right):\sqrt{2}=6\sqrt{2}:\sqrt{2}=6\)
= ( 6 √ 2 − 6 √ 2 + 6 √ 2 ) : √ 2
=6√2:√2
=6
\(=\left(2\sqrt{2\cdot9}-3\sqrt{2\cdot4}+\sqrt{2\cdot4\cdot9}\right):\sqrt{2}\\ =\left(2\cdot3\sqrt{2}-3\cdot2\sqrt{2}+3\cdot2\sqrt{2}\right):\sqrt{2}\\ =\left(6\sqrt{2}-6\sqrt{2}+6\sqrt{2}\right):\sqrt{2}=6\sqrt{2}:\sqrt{2}=6\)
\(\left(2\sqrt{18}-3\sqrt{8}+\sqrt{72}\right):\sqrt{2}\)
\(=\left(6\sqrt{2}-6\sqrt{2}+6\sqrt{2}\right):\sqrt{2}\)
=6