Question

How do you simplify `(7 - 2i) - (5 + 4i)`?

Answer 1

Combine the Real terms and the Imaginary terms separately
to get `(2-6i)`

Explanation:

`(7-2i)-(5+4i)`

`color(white)("XXX")=7-2i-5-4i`

`color(white)("XXX")=(7-5)+(-2i-4i)`

`color(white)("XXX")=2+(-6i)`

`color(white)("XXX")=2-6i`