SOLUTION: Solve the inequality algebraically. {{{ x^3-4x >= 0 }}}

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Question 625506: Solve the inequality algebraically.
+x%5E3-4x+%3E=+0+
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
Solve the inequality algebraically.
x^3-4x ≥ 0
x(x^2-4) ≥ 0
x(x+2)(x-2) ≥ 0
number line
<..-...-2...+....0....-....2...+.....>
solution: [-2,0] U [2,∞)