x^2-3x+1=0 then the value of x^3=1/x^3

• From equation x^2-3x+1=0, we get, x1=2.618 & x2=0.3819
  Both of the satisfy the equation x^3=1/x^3
  Hence, x=2.618 &0.3819
• 13 years agoHelpfull: Yes(0) No(5)
• first, divide both side by x,we get
  x-3+1/x=0
  x+1/x=3
  cube both side,then
  x^3+1/x^3+3.1.(x+1/x)=27
  x^3+1/x^3=27-9=18
  so, ans=18
• 10 years agoHelpfull: Yes(0) No(0)