Multiplies out the product of 2 binomials in the form (a + b)(c + d) with 1 unknown variable.

This utilizes the First-Outside-Inside-Last (F.O.I.L.) method.

This calculator has 2 inputs.

This utilizes the First-Outside-Inside-Last (F.O.I.L.) method.

This calculator has 2 inputs.

- FOIL = First, Outside, Inside, Last. Multiply the first terms together, then the outside terms together, then the inside terms together, then the last term together.
- (a + b)(c + d) = ab + ad + bc + bd

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- FOIL
- First Outside Inside Last - A method for multiplying two binomials
- binomial
- Polynomial which is the sum of two monomials
- binomial multiplication (foil)
- multiplication
- math operation involving the product of elements
- variable
- Alphabetic character representing a number