ОДЗ
x ≠ 3; x ≠ - 3
(x - 2)(x - 3) - 30 = 3(x - 3)(x + 3)
x^2 - 5x + 6 - 30 = 3(x^2 - 9)
x^2 - 5x - 24 = 3x^2 - 27
x^2 - 5x - 24 - 3x^2 + 27 = 0
- 2x^2 - 5x + 3 = 0
2x^2 + 5x - 3 = 0
D = 25 + 24 = 49 = 7²
x₁ = ( - 5 + 7)/4 = 0,5;
x₂ = ( - 5 - 7)/4 = - 3 ==> x ≠ - 3;
Ответ:
0,5