Question

Give me a minute or two to type question in comment box

Answer 1

as in multiply?

Answer 2

might want to start by writing as
\[\sqrt{6}i(2+\sqrt{8}i)\]

Answer 3

then you get
\[2\sqrt{6}i+\sqrt{48}i^2=2\sqrt{6}i-\sqrt{48}=-4\sqrt{3}+2\sqrt{6}i\]