Question

prove that in algebra 2 = 1 ?
if you want know how to solve it message me​

Answer 1

Answer:

Logically is correct but we assume that a=b so then a-b =b-b=0

in 7th step (a-b)(a+b)=(a-b)b the value becomes zero that is the error

so logically it is correct but it is not possible 2=1

it always 2≠1