AM-148

Partial fractions

A Math · Secondary 3 · Medium · Partial fractions

Express

\dfrac{x^2+5x+4}{x^3-x}

as the sum of partial fractions.

$\dfrac{4}{x}+\dfrac{3}{x-1}-\dfrac{2}{x+1}$
$\dfrac{4}{x}-\dfrac{3}{x-1}+\dfrac{2}{x+1}$
$\dfrac{3}{x}+\dfrac{4}{x-1}-\dfrac{2}{x+1}$
$\dfrac{4}{x}+\dfrac{2}{x-1}-\dfrac{3}{x+1}$

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