Sarah wants to hang a mirror in her room the mirror in the frame must have a area of 15 square feet the mirror is 3 feet wide and 4 feet long which quadratic equation can be used to determine the thickness of the frame

(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

answer: plz give a pic and answer choices so i can answer!

step-by-step explanation: