AM-1428

Partial fractions

A Math · Secondary 4 · Medium · Partial fractions

Let

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

. When expressed in partial fractions,

f(x)=\dfrac{A}{x-1}+\dfrac{B}{x+2}

. What is the value of

A

?

$\dfrac{10}{3}$
$\dfrac{7}{3}$
$2$
$3$

Sign in to check your answer and see the hint and the worked explanation. Free on PrepLab High.

Loading problem…