One side of a square is 3x + 2. which expression represents the perimeter? a) 2(3x + 2) b) (3x + 2)². c) 4(3x + 2).

The correct answer to this question is letter "C. 4(3x + 2)."

A) 2(3x + 2) , this shows the total length of the two sides of a square
B) (3x + 2)² , this shows the area of the square
C) 4(3x + 2), this shows the perimeter of a square.

A square has four side. Thus, you need to multiply the side by 4 to get the perimeter.