I need step by step explanation please:

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

Iam at home. /: i am playing video games. translate the following statement into symbolic form.

Factor the polynomial by its greatest common monomial factor.