1. The problem statement, all variables and given/known data The problem is attached in this post. 2. Relevant equations The problem is attached in this post. 3. The attempt at a solution I used washer method and set my outer radius as 2+2+√(x-1) and my inner radius as 2. I set my upper limit as 5 and my lower limit as 2. I set my integral as π∫((4+√(x-1))^2-(4) dx, from 2 to 5 = 485π/6 which is incorrect, the actual answer is 157π/6.