Task 928
Task 928: development task in emrekuruu/math-openenv, an RL environment on the Hugging Face Hub. Find all solutions $x$ (real and otherwise) to the equation \ x^4+64=0.\ Enter all the solutions, separated by commas.
The task
Find all solutions $x$ (real and otherwise) to the equation \[x^4+64=0.\]Enter all the solutions, separated by commas.