Answer
(-6i)(-4i) = -24
Work Step by Step
Directions: Perform the indicated operations. Write the result in the form a+bi.
(-6i)(-4i)
24$i^{2}$
Multiply
24⋅-1
i=$\sqrt -1$ ,therefore, $i^{2}$=$\sqrt -1$ ⋅ $\sqrt -1$= -1
-24
Multiply 24 by -1 to get final answer.