Question

Dupa simplificare raportul $x^{2} - 4 \\ x^{2} + 4x + 4$ devine.... Help!

Answer 1

x²-4= (x-2)(x+2)

x²+4x+4=(x+2)²

(x-2)(x+2)  supra (x+2)²  se simplifica x+2 si puterea lui (x+2)² de jos si obtinem

(x-2)/(x+2)