Some math teachers teach that you can expand expressions of this form by “FOIL”-ing them where FOIL stands for multiplying the First, Outside, Inside, Last, terms.
Lily
omg, this is just what I needed, too bad it only made me feel better for a few seconds
4.10 (10 votes)
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I seem to be missing some context here – what does the computation mean?
You’re thinking about it too hard.
Some math teachers teach that you can expand expressions of this form by “FOIL”-ing them where FOIL stands for multiplying the First, Outside, Inside, Last, terms.
omg, this is just what I needed, too bad it only made me feel better for a few seconds