Question

2x-2/x=1 then x^3-1/x^3​

Answer 1

Step-by-step explanation:

2x-2/x=1

2(x-1/x)=1

x-1/x= 1/2

on cubeing both side

(x-1/x)³= (1/2)³

x³-1/x³-3•x•1/x(x-1/x)=1/8

x³-1/x³-3×1/2= 1/8

x³-1/x³-3/2=1/8

x³-1/x³=1/8+3/2

x³-1/x³= 1/8+12/8

x³-1/x³= 13/8

...666....