Question

x + 1/x =2 find x³+1/x³ =?​

Answer 1

Answer:

x+1/x=2

taking cube both sides

(x+1/x)^3=2^3

x^3+1/x^3=8

Answer 2

Step-by-step explanation:

x + 1/x = 2

Doing cube both side

(x + 1/x)³ = (2)³

x³ + 1/x³ + 3(x + 1/x) = 8

x³ + 1/x³ + 3(2) = 8

x³ + 1/x³ = 8 - 6

= 2