Răspunsuri

2014-05-14T23:00:09+03:00
⇒ E(x)={3/(x-2)-2/(x+2)-10/(x-2)(x+2)}:x/(x²-4x+4)
={[3(x+2)-2(x-2)-10]/(x-2)(x+2)}:x/(x-2)(x-2)
={[3x+6-2x+4-10]/(x-2)(x+2)} · (x-2)(x-2)/x
=x/(x-2)(x+2)  · (x-2)(x-2)/x se simplifica
=(x-2)/(x+2)