How do you simplify #(12i)(3i)-(2i)(8-9i)#?
1 Answer
Sep 19, 2016
Explanation:
Perform the multiplication, distribute the brackets, collect like terms and simplify.
#rArr36i^2-16i+18i^2=54i^2-16i#
#color(orange)"Reminder " color(red)(bar(ul(|color(white)(a/a)color(black)(i^2=(sqrt(-1))^2=-1)color(white)(a/a)|)))#
#rArr54i^2-16i=-54-16i#
