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What is in foil?
Aluminum
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When do you FOIL?
In math, you FOIL when multiplying two binomials. Really, FOIL is just the distributive property; it's just a rule to help make sure you multiply everything in the first binomial by everything in the...
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What is a foil?
foil is a type of weapon used in fencing
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How do you do FOIL?
There is also a special method, useful ONLY for a two-term polynomial times another two-term polynomial. The method is called "FOIL". The letters F-O-I-L come from the words "first", "outer",...
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Is aluminum foil the same as tin foil?
When someone uses the term tin foil, that person is almost always talking about aluminum foil. Tin foil is an old term, and it has carried into the present where it is frequently used to mean...