# Multiply Binomial

FOIL is a mnemonic for the standard method of multiplying two binomials - hence the method may be referred to as the FOIL method.

## Calculator of Multiply Binomial

## Formula Multiply Binomial (FOIL method)

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

The word *FOIL* is an acronym for the four terms of the product:

**F**irst ("first" terms of each binomial are multiplied together)**O**uter ("outside" terms are multiplied - that is, the first term of the first binomial and the second term of the second)**I**nner ("inside" terms are multiplied - the second term of the first binomial and first term of the second)**L**ast ("last" terms of each binomial are multiplied)