some short and selected math problems of different levels in random order I try to keep the ans simple
As RHS is not negative so we have x^2>=3
Trying the lowest integer >\sqrt{3} that is 2 we get this satisfies the equation.
Now squaring both sides we get x^2(x^2-3)^2 = x + 2
at x >2 LHS grows faster than RHS so x = 2 is the only solution
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