\(=2\sqrt{3}.2\sqrt{6}-2\sqrt{3}.\sqrt{3}+2\sqrt{3}\\ =12\sqrt{2}-2.3+2\sqrt{3}\\ =12\sqrt{2}+2\sqrt{3}-6\)
\(=2\sqrt{18}-2.3+2\sqrt{3}\)
\(=4\sqrt{9}\sqrt{2}-6+2\sqrt{3}\)
\(=12\sqrt{2}-6+2\sqrt{3}\)
\(=6\left(2\sqrt{2}-1\right)+2\sqrt{3}\)
\(=6\left(\sqrt{8}-1\right)+2\sqrt{3}\)