To solve this problem, you can use the fact that 4 + √8 can be written as 2 + √2 + 2 + √2. This can be rearranged as (2 + √2) + (2 + √2), which is the same as (2 + √2) * 2. Therefore, the expression 4 + √8 can be written in the form (r + s√2) * 2, where r = 2 and s = 1. Therefore, the values of r and s are r = 2 and s = 1.