SOLUTION: Solve the following inequality. x^4>x^2

Question 912702: Solve the following inequality.
x^4>x^2
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!

Three critical points : ,,
Break up the number line into 4 regions,
Region 1 :
Region 2 :
Region 3 :
Region 4 :
Pick a point in each region (not the endpoint) and test the inequality.
If the inequality is satisfied the region is part of the solution.
Region 1 :

True, part of the solution region.
Region 2 :

False.
Region 3 :

False.
Region 4:

True, part of the solution region.
Now put it all together,
(,)U(,)
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in Red
in Green

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