If a-b=-8, and ab =-12, then a³ – b³ =

20

If = -1, then a³-b³ =

21

The product (x²-1) (x⁴+x²+1) is equal to=

23

If the volume of a cuboid is 3x²-27, then its possible dimensions are

24

If = 1, then a³+b³ =