Вправи: 269

269. Спростіть вираз:

1) 3a^–3 • 4a^–4 = 12a^–7; 2) 10b-415b-5 = 2b3;

3) (2c^–6)⁴ = 16c^–24; 4) m^–2n • mn^–2 = m^–1n^–1;

5) abc^–1 • ab^–1c = a²b⁰c⁰ = a²; 6) kp-6k4p4 = 1k4p10;

7) (c^–6d²)^–7 == c⁴²d^–14; 8) 13a^–3b^–6 • 67a⁷b⁴ = 27a⁴b^–2;

9) 0,2c^–3d⁵ • 1,5c^–2d^–5 = 0,3c^–5d⁰ = 0,3c^–5.