Question

if x +1/x=3, then find x^3+1/x^3​

Answer 1

Answer:

if x+1/x=3

3x-2x=1

x=1/2.

1/2^3+1/1/2^3

=1/8+1/1/8

=1+8/8/1/8

=9/1

=9

Answer 2

Step-by-step explanation:

just add the formula (x+1/x)^3= (x)^3+1/x