Final answer:
The expression 4x² + 3x + 2 is O(x²) in High School Mathematics.
Step-by-step explanation:
The given expression is 4x² + 3x + 2. To determine if it is O(x²), we need to compare the highest power of x in the expression. In this case, the highest power of x is x². Since x² is O(x²) (because it is the same power), the statement '4x² + 3x + 2 is O(x²)' is true.