Question

am nevoie de ajutor la exercitiul 5

Answer 1

Răspuns:

E(x) = x/x^2(x+1) • 6(x+1)(x-1)/(2x^2 + 3x - 2 - x^2 - 3x + 1)

E(x) = 1/x • 6(x-1)/(x^2 - 1)

E(x) = 6(x-1)/x(x+1)(x-1)

E(x) = 6/x(x+1)