A student showed the steps below while solving the inequality absolute value x-4 < 1 by graphing. What is the first step in which the student made an error?

(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

b. astronomers

mental cunning

explanation:

he is often referred to as a man of twists and turns

stops on an even number.