Mr. Randolph is putting the finishing touches on his backyard flower bed. The flower bed is 25 feet long and 6 feet wide, and it is bordered on two sides by the backyard fence. Mr. Randolph plans to put a pathway around the other two sides of the flower bed that is the same width on both sides. The total area of the flower bed and pathway in square feet can be modeled by the expression (x+25)(x+6), where x is the width of the pathway in feet. This expression can also be written in the form x2+31x+150.