Răspunsuri

2014-05-30T20:06:14+03:00
(2x+4+x^2-2x)/(x-2)(x+2)=(x^2+4)/(x-2)(x+2)=x^2-x-2=(x+1)(x+2)/x^2+4=(x^2+4)/(x-2)(x+2)*(x-2)(x+1)/x^2+4 =(x+1)/x+2