Question

Enter your answer and show all the steps that you use to solve this problem in the space provided. Fully simplify the expression (4i)(−i)

Answer 1

To simplify the expression (4i)(-i), we can use the fact that i^2 = -1.

(4i)(-i) = 4i * -i

Since i * i = i^2 = -1, we can substitute -1 in place of i * i.

4i * -i = 4 * -1

Multiplying 4 and -1, we get:

4 * -1 = -4

Therefore, (4i)(-i) simplifies to -4.