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Solve ineuqation composed of FractionFieldElement

I want to solve an inequation composed of FractionFieldElement.

RF = RealField(300)
P.<x> = RF[]
solve(x ^ 2 / (x + 1) >= 0, x) # TypeError: x is not a valid variable.

I got a TypeError. What can I do?

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Solve ineuqation composed of FractionFieldElement

I want to solve an inequation composed of FractionFieldElement.

RF = RealField(300)
P.<x> = RF[]
solve(x ^ 2 / (x + 1) >= 0, x) # TypeError: x is not a valid variable.

I got a TypeError. What can I do?