2. Which expression is equivalent to s^3-1 ? A (s+1)(s^2-s+1) B. (s-1)(s^2-s+1) c (s-1)(s^2-s-1) D. (s-1)(s^2+s+1)

To find the expression equivalent to , we can use the difference of cubes formula.The difference of cubes formula states that .In this case, we have , which can be written as .Using the difference of cubes formula, we can rewrite it as .Simplifying further, we get .Therefore, the expression equivalent to is .So, the correct answer is D. .