Problem 1: Add like terms
Problem 2:
1. FOIL
2. Combine like terms
3. Because "i" is -1, substitute -1 for "i" and solve and combine like terms
PROBLEM 1
PROBLEM 2
REFLECTION
I think using FOIL is easy, therefore these problems don't do me much harm. But, sometimes I do forget that "i" is -1.
ADDITIONAL RESOURCES
http://www.mathsisfun.com/numbers/complex-numbers.html
