The area of a rectangle is x³ - 8x² + 7 and one of its sides is x - 1. Find the length of the adjacent side.

The value of $x - \overline{x - y}$ is:

1. 2x

2. - y

3. y

4. 2x + y

$x (y - x - \overline{x - y})$ is equal to:

1. 2x (x - y)

2. 2x (y - x)

3. 2x (x + y)

4. -2x (y - x)

$(2x - y) + \overline{2x - y}$ is equal to :

1. 0

2. 2y

3. 4x

4. 4x - 2y