The sum of three consecutive integers is 1,008. what are those integers?

If they were all the same integer, then each one would be
1/3  of  1,008. 

That's 336.  So if they were all the same integer, they would be

                        336     336     336

And they would add up to 1,008.

You need them to be consecutive integers, and still add up to 1,008. 

Fine !  Just take one away from the first one, and glue it onto
the last one.

Now you have

                         335     336     337

And you haven't changed their sum.

Answerthe simplified expression isexplanationthe given expression is,let us deal with the bracket first.the two negatives in the parenthesis will become positive.the expression now becomes,we now expand the parenthesis to get,we group like terms to obtain,this simplifies to,