A handy way to remember how to multiply two binomials.

It stands for "First, Outer, Inner, Last"

It is the sum of:

· multiplying the **First** terms,

· multiplying the **Outer** terms,

· multiplying the **Inner** terms, and

· multiplying the **Last** terms

Example: (a+b)(c+d) = ac + ad + bc + bd

See: Binomial