To use the Associative Property to group like terms together in the expression \(9x + (2x + 3)\), you can rearrange the terms without changing their order.
Here’s how you can group the like terms together:
\[ (9x + 2x) + 3 \]
So the expression grouped using the Associative Property is:
\[ (9x + 2x) + 3 \]