It seems like you might be referring to the expression 3x², which means 3 multiplied by the square of x.

If you meant something else, please provide more context!

Let me know if you'd like me to elaborate on how to work with this expression or if you have any other questions.

Here are some related questions that could help deepen your understanding:

1. What is the value of 3x² when x = 2?
2. How can you factor the expression 3x² + 6x?
3. What is the derivative of the expression 3x² with respect to x?
4. How do you expand the square of a binomial, such as (x + 1)²?
5. What is the graph of the quadratic function y = 3x²?

Tip: If you're working with a quadratic function, remember that the graph will always be a parabola, and the coefficient of x² affects how "wide" or "narrow" the parabola is.