(1-√2)^6 = 1^6 - 6 1^5 √2 + 15 1^4 (√2)^2 - 20 1^3 (√2)^3 + 15 1^2 (√2)^4 - 6 1 (√2)^5 + (√2)^6= 1 - 6√2 + 15 2 - 20 2√2 + 15 4 - 6 8√2 + 16= 1 - 6√2 + 30 - 40√2 + 60 - 48√2 + 16= 1 + 30 + 60 + 16 - 6√2 - 40√2 - 48√2= 107 - 94√2
(1-√2)^6 = 1^6 - 6 1^5 √2 + 15 1^4 (√2)^2 - 20 1^3 (√2)^3 + 15 1^2 (√2)^4 - 6 1 (√2)^5 + (√2)^6
= 1 - 6√2 + 15 2 - 20 2√2 + 15 4 - 6 8√2 + 16
= 1 - 6√2 + 30 - 40√2 + 60 - 48√2 + 16
= 1 + 30 + 60 + 16 - 6√2 - 40√2 - 48√2
= 107 - 94√2