2. Find the domain of this function.

So,

The domain of a function f(x) is the set of all x values that have an f(x) associated with them.

We are given a graph of the function y = f(x).  We can see that all x-values from -3 to 3 have an f(x) associated with them, so the domain of y = f(x) is

(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

more detail

step-by-step explanation: