Question

if x=2-^3 ,find the value of (x-1/x)³​

Answer 1

x=1/2^3

(X-I/x)^3

= (1/8-1/1/8) ^3

= (1-8/8/1/8)^3.

= ( - 7/8/1/8)^3

= (-7/8 x 8)^3

= (-7/8 x 8)^3

=-7^3

=-343