Find the value of

(i).

36

Factorise:

(i). 37

Without actually calculating the cubes, find the value of:

(i).

(ii). (0.2)³− (0.3)³ + (0.1)³

38

Without finding the cubes, factorise

(x−2y)³ + (2y−3z)³ + (3z−x)³

40

Give possible expressions for the length and breadth of the rectangle whose area is given by 4