To use the Associative Property and group like terms together for the expression \( 9x + (2x + 3) \), we can rearrange the expression without changing its value.
Using the Associative Property, we can group the \( x \) terms together and the constant term separately.
Here’s how we can do it:
\[ (9x + 2x) + 3 \]
So, the expression grouped using the Associative Property is:
\[ (9x + 2x) + 3 \]
This groups the like terms \( 9x \) and \( 2x \) together.