Tính
a)\(\left(\sqrt{6}+2\right)\left(\sqrt{3}-\sqrt{2}\right)\))
b)\(\left(\sqrt{3}+1\right)^2-2\sqrt{3}+4\)
c)\(\left(1+\sqrt{2}-\sqrt{3}\right)\left(\sqrt{2}+\sqrt{3}\right)\)
d)\(\sqrt{3}\left(\sqrt{2}-\sqrt{3}\right)^2-\left(\sqrt{3}+\sqrt{2}\right)\)
e) \(\left(1+2\sqrt{3}-\sqrt{2}\right)\left(1+2\sqrt{3}+\sqrt{2}\right)\)
g) \(\left(1-\sqrt{3}\right)^2\left(1+2\sqrt{3}\right)^2\)