You're from Canada? Then you should know that it's "parabola" and "factor."

It depends on what you want. You can always put a parabola into the vertex form:

if you would consider that factored.

However, if you are given , where a, b, and c are integers, and want to write it as

then the answer is, in general, no if you are talking about integer d, e, f, and g.

Ex:

There are not even any real numbers d, e, f, and g such that the right hand side factors.

-Dan