The area of a square room can be expressed as 196x^12y^10z^6 square feet . hajime is installing a wallpaper border along the perimeter of the room. what is the perimeter?

It is a square room; so, first take the square of the area measure. 
√(196x^12y^10z^6) = 14x^6y^5z^3 
That result is the length of one side of the room; so, just multiply 
that result by 4 to find perimeter. 
14x^6y^5z^3 •4 = 56x^6y^5z^3| feet