Help me somebody posted this question twice already please ASAP

The answer is: x = -6

Step-by-step explanation:

For the solution of this question, a person should know how to observe graphs.

On the x-axis of the graph, the input is plotted and on the y-axis the output is plotted. The points are made by mapping input and output.

In the given graph, we can see that the output of function is 6 for x=-2

Observing more, we cans see that the function's value is also 6 for x=-6

Hence,

The answer is: x = -6

(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