How do you combine (8-8i) - (6-4i) ?

1 Answer
Nov 20, 2015

Combine the Real and Imaginary components independently to get
(2-4i)

Explanation:

(color(red)(8)-color(blue)(8i))-(color(red)(6)color(blue)(-4i))

color(red)("Real components") color(white)("X")color(red)(8 - 6 = 2)

color(blue)("Imaginary components")color(white)("X")color(blue)(-8i-(-4i) = -4i)