X^4+x^2-27x-9phân tích đa thức thành nhân tử

The depth of a lake at a certain point, wich is a function of the distance of that point from shore, is 30 feet.

Apublic library wants to place 4 magazines and 9 books on each display shelf. the expression 4s+9s represents the total number of items that will be displayed on s shelves. simplify the expression

The only way to identify an intercept is as an ordered pair. true false