Subtract imaginary numbers

[From: ] [author: ] [Date: 11-04-28] [Hit: ]

subtract (-7-2i) - (-4-2i)

Type answer in form of a + bi

(-7 - 2i) - (-4 - 2i) = -3 + 0i

That can just be written as -3, too.

Cheers!

Just treat 'i as any other variable:

(-7 - 2i) - (-4 - 2i)
-7 - 2i + 4 + 2i
-3

keywords: Subtract,imaginary,numbers,Subtract imaginary numbers