Question

Varog vreau raspunsul cat mi corect si daca se poate ca exercitul sa fie rezolvat pe o foaie

Answer 1

E(x) = (x+2)^2/x(x+2) • x/(x+2)
E(x) = (x+2)/x • x/(x+2)
E(x) = 1

Answer 2

$\it x^2+4x+4 = (x+2)^2= (x+2)(x+2) \\ \\ \\ 1+\dfrac{2}{x} = \dfrac{x+2}{x} \\ \\ \\ Expresia\ \ devine: \\ \\ \\ E=\dfrac{(x+2)(x+2)}{x(x+2)}:\dfrac{x+2}{x} = \dfrac{x+2}{x} :\dfrac{x+2}{x} =1$