AM-1060

Partial fractions

A Math · Secondary 4 · Medium · Partial fractions

Express

\dfrac{5x+7}{(x-1)(x+2)}

in partial fractions in the form

\dfrac{A}{x-1}+\dfrac{B}{x+2}

.

$\dfrac{4}{x-1}+\dfrac{1}{x+2}$
$\dfrac{1}{x-1}+\dfrac{4}{x+2}$
$\dfrac{5}{x-1}+\dfrac{2}{x+2}$
$\dfrac{2}{x-1}+\dfrac{3}{x+2}$

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