6a + 2 + 6a + 6 / 18a^3 - 18(12a + 8) / 18a^3 - 184(3a + 2) / 18(a^3 - 1)(4(3a + 2)) / (18(a - 1)(a^2 + a + 1))
a^3 - 27 / 8a - 24(a - 3)(a^2 + 3a + 9) / 8(a - 3)(a^2 + 3a + 9) / 8
(ax - ay - 3x + 3y) / (9 - a^2)a(x - y) - 3(x - y) / (3 + a)(3 - a)(a - 3)(x - y) / (3 + a)(3 - a)
6a + 2 + 6a + 6 / 18a^3 - 18
(12a + 8) / 18a^3 - 18
4(3a + 2) / 18(a^3 - 1)
(4(3a + 2)) / (18(a - 1)(a^2 + a + 1))
a^3 - 27 / 8a - 24
(a - 3)(a^2 + 3a + 9) / 8(a - 3)
(a^2 + 3a + 9) / 8
(ax - ay - 3x + 3y) / (9 - a^2)
a(x - y) - 3(x - y) / (3 + a)(3 - a)
(a - 3)(x - y) / (3 + a)(3 - a)