Images for The diagram shows the floor plan of a hotel lobby. Carpet costs $4 per square foot. How much will it cost to carpet the lobby? 28ft,39ft,28ft,14.5ft,14.5ft

(n^3 - n)

= n(n-1)(n+1)

since it is divisible by 3 and 2 ,because it is a multiple 3 consecutive number

if, n-1 is odd then n+1 is also odd, then it is a multiple of 9

but if, n-1 is even then n+1 is also even, then it is a multiple of 4

so, largest multiple = max(9*2, 4*3) = max(18, 12) = 18

w

step-by-step explanation: