In this video I work through 68 examples of factoring quadratic expressions when a is not equal to one. The first couple of ...

I make short, to-the-point online math tutorials. I struggled with math growing up and have been able to use those ...

iPad is the modern day slate. No longer do kids practice math on sheets of rough paper and black slates; the day isn’t far when kids start interacting with devices from the day they’re born. A step in ...