F.O.I.L.

F.O.I.L.

When expanding expressions it is often helpful to remember an acronym to assist in the process. An example of such an acronym, FOIL (First Outside Inside Last), is given below.

How the FOIL acronym is used to expand an algebraic expression

Design your own personal acronym to assist you in remembering the binomial expansions:

  1. (a + b)(a – b)

  2. (a+b)2 = a2 + 2ab + b2

  3. (a–b)2 = a2 – 2ab + b2

Create a short presentation demonstrating your acronym being used to expand various algebraic expressions. Share your demonstration with the class.