To factor a trinomial in the form of ax squared plus bx plus c we are going to use the "ac" method. Notice that the “a” and the “c” are multiplied together and that's exactly what we are going to do.

Tables placed in the UMT file give the complete factorization over $\mathrm {GF}(q), q = p^a$, of each trinomial $T(x)$ of degree $n, 2 \leqslant n \leqslant d$, as ...