Week 5: Factoring by grouping, Pascal's Triangle, & Complex Numbers

Factoring By Grouping:
http://www.khanacademy.org/math/algebra/multiplying-factoring-expression/factoring-by-grouping/v/factor-by-grouping-and-factoring-completely



Pascal's Triangle:

http://www.mathsisfun.com/pascals-triangle.html

Complex Numbers:

http://www.mathsisfun.com/numbers/complex-numbers.html