  In this article a procedure to construct bent functions from $\F_{p^n}$ to
$\F_p$ by merging plateaued functions which are bent on ($n-2$)-dimensional
subspaces of $\F_{p^n}$ is presented. Taking advantage of such classes of
plateaued functions with a simple representation as monomials and binomials, we
obtain infinite classes of bent functions with a fairly simple representation.
In particular we present the first direct construction of univariate not weakly
regular bent functions, and give one class explicitly in a simple
representation with binomials.
