________ is a set of graphic text styles that can be used to make text look like a graphic

A polynomial f(x) over a field F is called __________ if and only if f(x) cannot be expressed as a product of two polynomials, both over F, and both of degree lower than that of f(x).

Fill in the blank(s) with the appropriate word(s).

Bing and Yahoo! are examples of ______ engines.

Fill in the blank(s) with the appropriate word(s).