Editor
$\int \frac{(a-b)x}{(x-a)(x-b)} dx$ is equal to:
Difficulty: Easy
A: 
$xln|x-a|+xln|x-b|$
B: 
$ln|x-a|-xln|x-b|$
C: 
$aln|x-a|+bln|x-b|$
D: 
$aln|x-a|-bln|x-b|$
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