Respuestas

2012-09-15T01:50:20+02:00

x^2-3xx+2/x-2

(x-2)(x-1)/(x-2)    siplificando

x-1

2012-09-15T01:51:45+02:00

(1- 3/x+ 2/x^2 )/(1/x- 2/x^2 )

(x^2-3x+2)/x^2)/((x-2)/x^2)

(x^2-3x+2)/(x-2)=(x-1)(x-2)/(x-2)=(x-1)