Factor the following expression x^2-36

Anyone know? is appreciated! will mark brainliest if correct!

Solve this problem! extra ! 3025/5.5 = a/90.75 / = fraction

The area of a rectangle is 10 cm^2. one side of the rectangle is x cm. express the perimeter of the rectangle in terms of x and show that this rectangle cannot have a perimeter of 12 cm. the perimeter of the rectangle in terms of x is __ cm