Five students each wrote an expression to represent the perimeter of the given rectangle. Terrell wrote this correct expression:(2x+2x)+(5x+5x)+(1+1).

The correct expression written by Terrell is 2x + 2x + 5x + 5x + 1 + 1.

Terrell correctly wrote the expression: (2x + 2x) + (5x + 5x) + (1 + 1) to represent the perimeter of the rectangle.

To find the perimeter of a rectangle, you need to add up all four sides of the rectangle.

In this case, Terrell wrote the expression (2x+2x)+(5x+5x)+(1+1) to represent the perimeter.

To simplify the expression, you can combine like terms.

First, let's simplify (2x+2x). Since the two terms have the same variable (x), we can add their coefficients (2+2) to get 4. So, (2x+2x) simplifies to 4x.

Similarly, (5x+5x) simplifies to 10x as the coefficients add up to 10.

Lastly, (1+1) equals 2.

Now, substituting the simplified expressions back into the original expression, we have 4x + 10x + 2.

To find the final perimeter, we can add up these three terms: 4x + 10x + 2.

Combining the x terms (4x and 10x), we get 14x.

So, the final expression for the perimeter is 14x + 2.