9^20 + 9^20 + 9^20 Let me see. Factor put 9^20. 9^20(1 + 1 + 1) 9^20 (3) Express 9 as 3^2. Express 3 as 3^1. (3^2)^20 (3^1) 3^(40) (3)^1 3^(40 + 1) 3^(41) is my answer. You say?