How would i solve a problem like this? two trains leave stations at 448 miles apart at the same time and travel toward each other. one train travels at 85 miles per hour while the other travels 75 miles per hour. how long will it take for the two trains to meet? do not do any rounding.

(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: h

step-by-step explanation: