High temperature is 6°C the low temperature was -3°C what was the difference between the high and low temperatures

Answer

9

Step-by-step explanation:

Think of the difference as adding, 6+3=9.

Its a little confusing to understand at first.

(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