Question

x-1/x=3+2root2 then find xcube -1/x cube

Answer 1

Step-by-step explanation:

x-1/x=3+2root2

on cubing both sides

x³-1/x³=(3+2root2)²

x³-1/x³=9+8

x³-1/x³=17

I wish this is will be helpful for you.