Identify the pair of equivalent expressions.(1 point)

To identify which pair of expressions are equivalent, we can simplify each pair:

1. 2x + 2 and 2(x + 2):

   • \( 2(x + 2) = 2x + 4 \) (not equivalent to \( 2x + 2 \))

2. 3x + 2x and x²(3 + 2):

   • \( 3x + 2x = 5x \)
   • \( x²(3 + 2) = x² \cdot 5 = 5x² \) (not equivalent to \( 5x \))

3. −3(x + 2) and −3x − 3:

   • \( −3(x + 2) = -3x - 6 \) (not equivalent to \( -3x - 3 \))

4. 2(x + 3) and 2x + 6:

   • \( 2(x + 3) = 2x + 6 \) (these are equivalent)

Thus, the pair of equivalent expressions is:

2(x + 3) and 2x + 6.