Question

find the least common multiple of
1) 1-x^2 and (x-1)^3
2)(x-3)^2, x^2-9, and (x+3)^3
3) (2a-1)^2,1-4a^2, and 8a^3-12a^2+6a-1
PLEASE HURRY FIRST GETS BRAINLIEST
30 POINTS + BRAINLIEST