Решение:
- \( 2^3 · 2^4 = 2^{3+4} = 2^7 = 128 \)
- \( \frac{5^{12}}{5^4} = 5^{12-4} = 5^8 \)
- \( \frac{(0.3)^9 · (0.3)^{78}}{(0.3)^4} = \frac{(0.3)^{9+78}}{(0.3)^4} = \frac{(0.3)^{87}}{(0.3)^4} = (0.3)^{87-4} = (0.3)^{83} \)
- \( 13^3 · 3^9 \)
Ответ: 128; 58; (0.3)83; 133 ⋅ 39.