3) a) 6^3-(-8)^2; 6) -10^4+(-5)^3; B) (-1)^5-(-1)^{10}.

Решение:

1. a) \( 6^3 - (-8)^2 = 216 - 64 = 152 \)
2. 6) \( -10^4 + (-5)^3 = -10000 + (-125) = -10000 - 125 = -10125 \)
3. B) \( (-1)^5 - (-1)^{10} = -1 - 1 = -2 \)

Ответ: a) 152; 6) -10125; B) -2.