Question

simplify x^2-1/x^2+2x+1

Answer 1

(x-1)/(x+1)

Answer 2

\[\frac{ (a-b)(a+b) }{ (a+b)^2}\]

Answer 3

\[\frac{ (x-1)(x+1) }{ (x+1)(x+1) }\]

Answer 4

Cancelling out (x+1) in the numerator and the denominator, your simplified expression is:
\[\frac{ (x-1) }{ (x+1) }\]