Ответ:

Объяснение:

1. 2×(-3)³ - 12 = 2×(-27) - 12 = -54-12= -66

2. a) = a²²

b) = a¹⁹

c) = a²⁴

d) = 27x¹⁸

3. a) = - 35a¹⁷b⁹

b) = -8a⁶b¹⁵

4. = 5⁷×5⁶/5¹⁰ = 5¹³/5¹⁰ = 5³ = 125

5. a) 8/3a⁵b⁸×9/4a²b⁶ = 6a⁷b¹⁴