§ 10: 10.12

10.12 Розв’яжіть рівняння:

1) x9 = 1; x = 1;	2) x8 = 12; x = ±512;	3) x10 = 1; x = ±1;
4) x18 = 0; x =0;	5) x5 = –32; x = –2;	6) x6 = –64; x ∈ ∅;

7) 64x⁵ + 2 = 0; 64x⁵ = –2; x = 5-132; x = –12;

8) (2x + 1)³ = 8; 2x + 1 = 38; 2x + 1 = 2; 2x = ; x = 12;

9) (x – 3)⁴ = 729; x – 3 = 6729; x – 3 = 693; x – 3 = 3; x = 6, або

x – 3 = –636, x – 3 = –3, x = 0.