Question

Descompuneti in factori si simplificati rapoartele:
x²-2x+1
----------=
x²-1

Answer 1

X la a 2-2x+1=
(X-1) la a 2
X la a2-1=
(X-1)•(x+1)

Answer 2

$\frac{x^2-2x+1}{x^2-1}=\frac{(x-1)^2}{(x-1)(x+1)}=simplificam\,cu\,(x-1)=\frac{x-1}{x+1}$