Let's classify each expression as a monomial, binomial, or trinomial:

1. Expression: $5x^2$

   • Classification: Monomial (single term)
     • This expression has only one term: $5x^2$.

2. Expression: $16 - 4x^2 + 10x$

   • Classification: Trinomial (three terms)
     • This expression has three distinct terms: $16$, $-4x^2$, and $10x$.

3. Expression: $3x^3$

   • Classification: Monomial (single term)
     • This expression has only one term: $3x^3$.

4. Expression: $-x^2 - 16$

   • Classification: Binomial (two terms)
     • This expression has two distinct terms: $-x^2$ and $-16$.

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Would you like any further details or have any questions?

Here are some related questions:

1. What would the classification be for the expression $7x + 2y + 3$?
2. How do you classify the expression $4xy$?
3. Can you create an example of a polynomial with four terms?
4. What are the steps to add two binomials together?
5. How do you multiply a monomial by a binomial?
6. Can you factorize the trinomial $x^2 + 5x + 6$?
7. How do you classify an expression like $7$ (with no variable)?
8. What is the degree of the trinomial $2x^3 - 4x + 9$?

Tip: When classifying polynomials, count the number of distinct terms, separated by addition or subtraction signs, to determine whether it is a monomial, binomial, or trinomial.