Question

Se considera fractia : F(x) = $\frac{ x^{2} + 7x +12}{(x+2)²-1 }$
a) Simplificati fractia .
b) Stabiliti domeniul maxim de existenta al fractiei
c) Aratati ca E(2) + E(-2) este numar natural.

Answer 1

x(x+1)+6(x+2)/$(x+2)^{2}$-1...........sesimplifica=====>(x+1)(x+6)/(x-2)-1......b)nu-l stiu........c)E(2)=27/-1=-27.......E(-2)=-4/-7.........E(2)+E(-2)=-193/7...........Cred ca este corect!!