Evaluate 2i−18i

. Provide your answer in the form of a+bi
. (1 point)

1 answer

To evaluate the expression \( 2i - 18i \), we can combine the like terms:

\[ 2i - 18i = (2 - 18)i = -16i \]

In the form \( a + bi \), where \( a \) is the real part and \( b \) is the imaginary part, we can express \(-16i\) as \( 0 - 16i \).

Thus, the answer is:

\[ 0 - 16i \]

or simply:

\[ 0 + (-16)i \]

In conclusion, the final answer is:

\[ 0 - 16i \]