Watch these Youtubes: http://www.youtube.com/watch?v=9wDb-1yTpoo http://www.youtube.com/watch?v=lZezCGUaOEI http://www.youtube.com/watch?v=mquu-I7p2JE&feature=fvwrel http://www.youtube.com/watch?v=X4sRy7_usYI&feature=related And there are links for others there for most any topic in algebra. Edwin