Use the properties of complex numbers to subtract −5i−16i .(1 point)

Question

Responses

−21
negative 21

21i
21 i

−21i
negative 21 i

11i

Answer 1

To subtract the two complex numbers \(-5i\) and \(-16i\), you combine like terms:

\[ -5i - 16i = (-5 - 16)i = -21i \]

Therefore, the result of the subtraction is \(-21i\).

The correct response is:

−21i (negative 21 i)