C-03-Q130mediumsingle_mcqFactorize a3−6a2+12a−9a^3 - 6a^2 + 12a - 9a3−6a2+12a−9:a(a−3)(a2−3a+3)(a-3)(a^2 - 3a + 3)(a−3)(a2−3a+3)b