1) (2x - 6)²(x - 6) = (2x - 6)(x - 6)²
(2x - 6)²(x - 6) - (2x - 6)(x - 6)² = 0
(2x - 6)(x - 6)(2x - 6 - x + 6) = 0
x(2x - 6)(x - 6) = 0
x₁ = 0 или 2x - 6 = 0 или x - 6 = 0
x₂ = 3 x₃ = 6
Ответ : 0 ; 3 ; 6
2) 1 - 5x = - 6x + 8
- 5x + 6x = 8 - 1
x = 7
Ответ : 7