Show the work for the complex number

Question

(2 square root3)(-1 square root-27)

Answer 1

(2 rad3)(-1 rad(-27)) =

(2 rad3) (-1 rad(3*3*3-1)) =

(2 rad3) (-1 * 3 i rad(3)) =

-2 *3*i *3 =

-18i