1. The inverse? Totally easy, it’s 1 / (x^3 + x) [drops mic]

  2. [The inverse isn’t that bad but it’s still not fun to do on paper](https://latex.codecogs.com/png.image?large&space;dpi{200}sqrt[3]{frac{9x+sqrt{12+81x^2}}{18}}+sqrt[3]{frac{9x-sqrt{12+81x^2}}{18}})

  3. as someone who has derived the solution from scratch i can confirm that it is not easy

  4. y = x³-1
    y+1 = x³
    ³√(y+1) = x

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