Решение:
- \( 6^2 - (5 + 2)^2 + (10 - 1)^2 - (12 - 8)^2 \)
\( = 36 - 7^2 + 9^2 - 4^2 \)
\( = 36 - 49 + 81 - 16 \)
\( = -13 + 81 - 16 \)
\( = 68 - 16 \)
\( = 52 \) - \( 8/2 - 3 * 5 \)
\( = 4 - 15 \)
\( = -11 \) - \( 100 / (2 * 5) \)
\( = 100 / 10 \)
\( = 10 \)
Ответ: 1) 52, 2) -11, 3) 10.