`(x - 2)^3 - (x + 2)(x^2 - 2x + 4) + (2x - 3)(3x - 2) = 0`
`<=> x^3 - 3x^2. 2 + 3x. 2^2 - 2^3 - (x. x^2 - x. 2x + 4x + 2x^2 - 2. 2x + 2. 4) + (2x. 3x - 2x. 2 - 3. 3x + 3. 2) = 0`
`<=> x^3 - 6x^2 + 12x - 8 - (x^3 - 2x^2 + 4x + 2x^2 - 4x + 8) + (6x^2 - 4x - 9x + 6) = 0`
`<=> x^3 - 6x^2 + 12x - 8 - x^3 + 2x^2 - 4x - 2x^2 + 4x - 8 + 6x^2 - 4x - 9x + 6 = 0`
`<=> (x^3 - x^3) + (-6x^2 + 2x^2 - 2x^2 + 6x^2) + (12x - 4x + 4x - 4x - 9x) + (-8 - 8 + 6) = 0`
`<=> -x - 10 = 0`
`<=> -x = 10`
`<=> x = -10`
Vậy `x = -10`
