Вычислим:
- a) $$6^2 - 5^2 + 3^2 - 2^2 = 36 - 25 + 9 - 4 = 11 + 5 = 16$$
- б) $$1^3 + 2^2 + 3^1 - 2^3 = 1 + 4 + 3 - 8 = 8 - 8 = 0$$
- в) $$(8^2 : 16 - 2)^2 + 2^3 = (64 : 16 - 2)^2 + 8 = (4 - 2)^2 + 8 = 2^2 + 8 = 4 + 8 = 12$$
- г) $$(9^2 : 27 - 2) \cdot 5^2 = (81 : 27 - 2) \cdot 25 = (3 - 2) \cdot 25 = 1 \cdot 25 = 25$$
Ответ: 1) 16; 2) 0; 3) 12; 4) 25