a city manager wants to add a playground in a new city park. the rectangle below represents the plan for the dimensions of the rectangular playground.
w
x + 15

a. find the width (w) of the rectangle if the area of the rectangle is x2 + 18x + 45.
area= x2 +18x+45

b. find the dimensions (length × width) and the area of the playground if x = 8 yards.