Question

if x+1/x=4,find the value of x3+1/x3 its urgent

Answer 1

Answer:

Answer:

x+1/ x = 4

x+1 = 4x

1 = 3x

x = 1/3

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

is 8