How do you evaluate #(- 8- 5i ) ( - 3- 3i )#?
1 Answer
Oct 19, 2017
Expand by using the FOIL method.
Explanation:
First of all, you cannot evaluate the expression because it is an expression; you can only simplify it - that's what I'm going to tell you.
When simplifying two binomials, the easiest method is to FOIL the expand.
#(~8-5i)(~3-3i)#
#=24+24i+15i+15i^2#
#=24+39i+15i^2#
I'm going to rearrange the expression so it is easier to read.
#=15i^2+39i+24#
That's it.
Hope this helps :)
