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A tough inequality question!

find x which allows this inequality to hold:
1+2x-x^2>2/x

So I thought since, we don't know if x is negative or positive create 2 cases. Case 1) where x is negative and therefore x+2x^2-x^3<2, and solve
or case 2) where x is positive and therefore x+2x^2-x^3>2

Then working out the solutions to each and finding which set of x values satisfy the equation?

If you can't help me with the actual equation, please let me know if my idea seems sensible or if it is flawed. Thanks!
Original post by Student10011
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Your thinking in fine.

The cubic has easy roots.

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