Emily was going to sell all of her stamp collection to buy a video game. after selling half of them she changed her mind. she then bought seventeen more. write an expression for how many she has now.
i think you have to write an expression to

  s/2 +17

Step-by-step explanation:

If s represents the number of stamps Emily started with, then the number she had after selling half of them is ...

  s/2

After purchasing 17 more, she had ...

  s/2 +17

(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