Fuck Math

Any language that allows shit like this should be outlawed.

let A=1
let B=A
A²=B²
A²=AB and
A²-B²=A²-AB
(A+B)(A-B)=A(A-B)
(A+B)=A
2=1.

You're stupid and can't do math right.
You start by saying that A=B, then you proceed to multiply something by A-B or 0, then you proceed to divide by 0 and complain that your nonsensical string of symbols led you to nonsense.