83.0k views
0 votes
Perform this operation (5-6i)(-2-10i)

User JaakkoK
by
7.1k points

1 Answer

4 votes

Answer: -38i-50

Explanation:

First what you want to do is follow the FOIL method here

(5·-2)+(-6i·-2)+(5·-10i)+(-6i·-10i)

Second you want to combine like terms:

-60i^2+(-50i+12i)-10

After that, i^2 = -1:

-60(-1)-10-38i

So you end up with -38i+50

User Cristian Cavalli
by
6.8k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.