Question

How do you multiply `(-4i)^3`?

Answer 1

Operate like real numbers, just remember that `i^2 = - 1`

Explanation:

Operate using numbers like real ones:

`(- 4 i)^3 = (- 4)^3 cdot i^3 = - 64 cdot i^2 cdot i = - 64 cdot (-1) cdot i = 64 i`