Simplify and show your work. (6i)(-2i)(-6-4i)

Question

Simplify and show your work.
`(6i)(-2i)(-6-4i)`

Answer 1

- 72 - 48i

Explanation:

note that i² = - 1

(6i)(- 2i)(- 6 - 4i)

= - 12i²(- 6 - 4i)

= - 12(- 1)(- 6 - 4i)

= 12(- 6 - 4i) ← distribute parenthesis by 12

= - 72 - 48i