Răspuns:
[tex](\frac{x}{x^{2}-4 } +\frac{2}{2-x} -\frac{1}{x+2}) :(x-2+\frac{6-x^{2} }{x+2} )=(\frac{x}{(x-2)(x+2)} +\frac{2}{2-x} -\frac{1}{x+2} ):(x-2+\frac{6-x^{2} }{x+2} =(x+2-1):(x-2+\frac{6-x^{2} }{x+2} )=[/tex]
Pana aici stiu mai departe nu imi dau seama
