Addition and Subtraction

Subtraction

Since complex numbers operate similarly to polynomial expressions, when subtracting complex numbers change the sign of the terms being subtracted using the Distributive Property. Clear the parentheses. Combine like terms.

Example 1 Simplify the following expression

sub 1

Step 1. Change the signs of the second complex number.

sub 1-2

Step 2. Clear the parentheses.

sub2

Step 3. Combine like terms.

sub 3