WOW! That is quite a question Pink Poutine. First, let's define our variables. I assume that x is the integer in the middle.
The first number is: n - 2
The second number is: n
The third number is: n + 2
Using these variables make the equation representing:
« The sum of the squares of the largest and smallest integers is 353 less than three times the square of the middle integer. »
Solve for x. Find x-2 and x + 2
And you're done.
Let me know if that's not working. It worked perfectly well for me.
Have a nice evening.
PicRapide