Question 419779
i think your answer would be (1-s)


when you combine denominators, you are left with:


(1-s^2) / (s+1)


this is equivalent to:


(1-s) * (1+s) / (s+1)


since (1+s) is equivalent to (s+1), then they cancel out and you are left with:


(1-s)


this is not the same as (s-1).