Răspuns :
E(x)=[x²(x+2)-3(x+2)]/[(x-2)(x+2)
E(x)=[(x+2)(x²-3)]/[(x-2)(x+2)] simplificam cu x+2
E(x)=(x²-3)/(x+2)
E(x)=[(x+2)(x²-3)]/[(x-2)(x+2)] simplificam cu x+2
E(x)=(x²-3)/(x+2)
E(x)=[tex] \frac{x^{2} (x+2)-3(x+2)}{(x-2)(x+2)} [/tex]
E(x)=[tex] \frac{(x+2)( x^{2} -3)}{(x+2)(x-2)} [/tex]
E(x)=[tex] \frac{x^{2}-3 }{x-2} [/tex]
E(x)=[tex] \frac{(x+2)( x^{2} -3)}{(x+2)(x-2)} [/tex]
E(x)=[tex] \frac{x^{2}-3 }{x-2} [/tex]