Abuilding has 3 identical rectangular parking lots. the sum of the perimeters of the 3 parking lots is 540 feet. if the width of each parking lot is 40 feet, how many feet long is each parking lot?

(f - g)(x) = 5x^3 - 3

step-by-step explanation:

rearrange these functions vertically, with like terms in separate columns:

f(x) = 5x^3 - 2

g(x) =         +1

now subtract, column by column:

(f - g)(x) = 5x^3 - 3