Final answer:
The expression xy - 13 + 4xyz is a trinomial with three terms: xy, -13, and 4xyz.
Step-by-step explanation:
The expression xy - 13 + 4xyz is a trinomial.
A trinomial is a polynomial expression that contains three terms. In this expression, we have three terms:
- Term 1: xy
- Term 2: -13
- Term 3: 4xyz
Therefore, the expression xy - 13 + 4xyz is a trinomial.