Question

the length of a square is 2x+3. write and simplify an expression for the perimeter of the square

Answer 1

a square has 4 equall side so if one side is 2x+3 

then:
the perimeter is 2x+3 + 2x+3 + 2x+3 + 2x+3

Combine like terms and the answer is:
8x+12