cine ? aștept please

Cine Aștept Please class=

Răspuns :

x(x^{2} +2x +1) / (x^{3}-1)(x^{2} -x) = \\
x(x+1)^{2} / (x-1)(x^{2} +x+1)+x(x-1) = \\
x(x+1)^{2} / (x-1)(x^{2} +2x+1) = \\
x(x+1)^{2} / (x-1) (x+1)^{2} = \\
x/(x-1)