Question 122
Determine the least common multiple and the greatest common divisor of the expressions:
$$
-3 x^{4}+24 x, \quad x^{3}-6 x^{2}+12 x-8, \quad a x^{2}-4 a x+4 a, \quad 3 b x^{2}-12 b
$$
(10 points)
$$
-3 x^{4}+24 x, \quad x^{3}-6 x^{2}+12 x-8, \quad a x^{2}-4 a x+4 a, \quad 3 b x^{2}-12 b
$$
(10 points)