I learned negative as being a separate operation where we need to apply the order of operations. I think it was something like :
-2 is a diminutive for -1x2 so it uses the order of operations of a multiplication.
My calculator is the official one used in schools in France (ti-83 premium ce) and it says -2^2 = -4 with the negative key.
I don’t think it would make a mistake in such a simple concept.
But whatever these concepts can change depending on the field, country, level of education. What I mean is : it’s unclear, so use parentheses. So (-2)^2 or -(2^2) are the correct ways to write it.
Same, hiding root from my bank app was easy, no safetynet needed.
But their NFC phone payment was something else. I had to use safetynet and google play integrity fix with fingerprint that need to be renewed and other bullshit. I sent my phone in a boot loop too because the latest version had a bug for my specific phone …