"Innumerate", perhaps.
NM equals 2x + 1, as stated in the question!
Fibonacci numbers
Pythagoras.
it is the associative property
2048
42
the person who came up with that is pythagoris, and it is called the pythagrian theorem.
4+1=5. Plus 4 equals 9. Plus 77685769844446473 equals 77685769844446482. Plus 3 equals 77685769844446485. Plus 8 equals 77685769844446493. Plus 1 equals 77685769844446494. Plus 9870998342523322424 equals 1064785604097768918. Plus 4 equals 1064785604097768922.
It is the property that equals plus equals are equals.
the answer is a
It is, as stated, 2x2 + x - 1 = 0. That is the quadratic form.
However you like, I suppose. I'd be inclined to respond "me + person who doesn't know diddly about math = no way".