Math Homework. Do It Faster, Learn It Better.
Adding and Subtracting Complex Numbers
To add or subtract two complex numbers , simply add the real and imaginary parts separately.
Example 1:
Simplify.
By the Commutative and Associative Properties,
Simplify.
The sum is .
Example 2:
Simplify.
By the Commutative and Associative Properties,
Simplify.
The difference is .