Step-by-step explanation
We must classify the following polynomial:
Looking at this polynomial, we see that:
• it has three terms ⇒ it is a trinomial,
,
• the term with the highest degree is 9x²y with degree 2 + 1 = 3 ⇒ the polynomial has degree 3.
We conclude that we have a trinomial with a degree of 3.
Answer
It is a trinomial with a degree of 3.