Вправи: 388

388. Піднесіть до степеня вираз:

1) (2x^–3y)^–4 = 2^–4x¹²y^–4 = 124x¹²y^–4 = 116x¹²y^–4;

2) (x^–6y^–4)^–5 = x²⁰y²⁰;

3) (0,5x^–12y⁴)^–1 =(12)^–1x¹²y^–4 = 2x¹²y^–4;

4) (x2y)^–5 = x-10y-5 = x¹⁰y⁵;

5) (3y)^–3 = (y3)³ = y327 = 127y³;

6) (ab-2)^–3 = (b-2a)³ = b-6a3 = a^–3b^–6;

7) (a-24b4)^–3 = (4b2a-2)³ = 64b12a-6 = 64a⁶b¹²;

8) (–x-32y-5)² = x-64y-10 = 14x^–6y¹⁰;

9) (–3a-5b4)^–1 = –b43a-5 = –13a⁵b⁴.