The given expression is:

$3x^3y + 2y^3$

This is a polynomial expression with two terms. Here’s a breakdown:

1. First term: $3x^3y$ – This term consists of $x$ raised to the power of 3, multiplied by $y$, and then multiplied by 3.
2. Second term: $2y^3$ – This term consists of $y$ raised to the power of 3 and then multiplied by 2.

If you want to evaluate this polynomial for specific values of $x$ and $y$, please provide the values.

Would you like to proceed with evaluating this expression for given values, or do you need further clarification?

Here are 5 related questions to expand on this:

1. How would you evaluate this polynomial if $x = 2$ and $y = -1$?
2. What happens to the expression if both $x$ and $y$ are equal to zero?
3. How can you factorize the polynomial $3x^3y + 2y^3$?
4. What is the degree of this polynomial?
5. How would the expression change if you added another term, like $+ 4x^2y^2$?

Tip: To find the degree of a polynomial, add up the powers of all variables in each term and take the largest sum.