It means: First, Outers, Inners, Last and is the order of operations when multiplying out bracket in algebra
You can remove parenthesis or bracket by multiplying the number outside, with the number inside the bracket.
In Algebra, "is" means Equal (=).
"And" in algebra usually means addition.
It usually refers to an introductory algebra class.
It mean to Subtract (-)
you can use the "foil" method. this is where you multiply the first numbers in each bracket ("f") then times the outside numbers in each bracket together ("o") then multiply the inside numbers together ("i") and then, the last numbers in each bracket ("l") you then add all of the answers together and simplify it.
If your in English Class it Means that you should be in your Algebra Class.
In algebra, 8n means to multiply n and 8. (8xN)