Upgrade to access all content for this subject

Which one of the following is the correct form of the decomposition of the rational expression:

$$\frac{x - 1}{x^{2}(x^{2} + 1)}?$$

$\cfrac{A}{x}$ + $\cfrac{Bx + C}{x^{2}}$ + $\cfrac{Dx + E}{x^{2} + 1}$

$\cfrac{A}{x}$ + $\cfrac{Bx + C}{x^{2}}$ + $\cfrac{D}{x^{2} + 1}$

$\cfrac{A}{x^{2}}$ + $\cfrac{Bx + C}{x^{2} + 1}$

$\cfrac{A}{x}$ + $\cfrac{B}{x^{2}}$ + $\cfrac{C}{x^{2} + 1}$