1.) The width of a rectangular playground is 2x-5 feet and the length is 3x+9 feet. Write a polynomial P(x) that represents the perimeter and then evaluate this perimeter polynomial if x is 4 feet.
2.) h^8k^3 * 5h
3.) (x^3 - 5x^2 - 1)7x^
4.) (5x - 6)(5x - 6)
5.) The length of a rectangular swimming pool is 2x - 1 meters, and the width is x+2 meters. Write a polynomial that represents the area. Find the area if x is 5 meters.