Решите уравнения:
1) (х+2)^4 + (х+2)² = 12
2) х³ + 2x² - x - 2 = 0
3) x^6 = (6x - 8)³
4) x² - 3x + √6 - х = √6 - х + 28
5) (x² - 25)² + (x² + 3x - 10)² = 0
6) (x² - 16)² + (x² + x - 12)² = 0
7) ( x - 1)(x² + 6x + 9) = 5(x+3)
8) (x - 2)(x² + 8x + 16) = 7(x + 14)
9) x(x² + 4x + 4) = 3(x+2)
