text: You need to know where your problem starts, there are some really good math books, named PROGRAMED...math algebra, geometry, etc.  The problem usually is flawed logic somewhere along the line.  College book store should have programmed books, and do not fear asking for assistance from professor or other students.  You are in a really tough course but stick with it, the rewards are fantastic.  I am talking about your very important future  Oh yeah keep practicing.