SOLUTION: find all real values of x such that f(x)=0: f(x)=x^3-x

Algebra ->  Trigonometry-basics -> SOLUTION: find all real values of x such that f(x)=0: f(x)=x^3-x      Log On


   



Question 226943: find all real values of x such that f(x)=0: f(x)=x^3-x
Answer by chibisan(131) About Me  (Show Source):
You can put this solution on YOUR website!
since f(x) =0
x^3-x = 0
x(x^2-1)=0
x=0 and,
x^2-1=0
x^2=1
x=1 or -1
the real values of x are -1,0,1