AM-1420

Partial fractions

A Math · Secondary 4 · Hard · Partial fractions

Express

\dfrac{5x+7}{x^2-4}

in the form

\dfrac{A}{x-2}+\dfrac{B}{x+2}

, where

A

and

B

are constants.

$\dfrac{17/4}{x-2}+\dfrac{3/4}{x+2}$
$\dfrac{3/4}{x-2}+\dfrac{17/4}{x+2}$
$\dfrac{5}{x-2}+\dfrac{7}{x+2}$
$\dfrac{17}{x-2}+\dfrac{3}{x+2}$

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