## Counting in base [any]

If you’re reading this, you probably learned how to count using your fingers going from one to ten. It is a convenient and intuitive system given that humans generally have 10 fingers. This is the decimal counting system that is also referred to as base ten because it is based on powers of ten (who…

## Forget FOIL, multiply with rectangles!

We’re going to take a quick trip down elementary-high-school-algebra lane, and explore an alternative to the commonly taught method of multiplying two binomials known as FOIL. This is the kind of expression I’m talking about: (x – 2)(x + 6) This expression can be easily simplified using FOIL, provided you remember what the acronym stands…