(x^3 + 4x^3 - 6x^2) : 4x^2(x^3 - 8) : (x^2 + 2x + 4)(3x^2 - 6x) : (2 - x)(x^3 + 2x^2 - 2x - 1) : (x^2 + 3x +1)

(x^3+ 4x^3 -6x^2) :4x^2
(x^3 - 8):(x^2 +2x +4)
(3x^2 -6x):(2 -x)
(x^3 +2x^2 -2x - 1) : (x^2 + 3x +1)

​​​​(x^3 + 4x^3 - 6x^2) : 4x^2(x^3 - 8) : (x^2 + 2x + 4)(3x^2 - 6x) : (2 - x)(x^3 + 2x^2 - 2x - 1) : (x^2 + 3x +1)