HF RL Explorer

Task 728

Task 728: development task in emrekuruu/math-openenv, an RL environment on the Hugging Face Hub. Let $f(x) = x^2-2x$. How many distinct real numbers $c$ satisfy $f(f(f(f(c)))) = 3$?

The task

Let $f(x) = x^2-2x$. How many distinct real numbers $c$ satisfy $f(f(f(f(c)))) = 3$?