Answer
-10x(x+5)(x-5)
Work Step by Step
Denominators: $x^{2}$-25, 50x-10, x
$x^{2}$-25 factors: x+5, x-5
50-10x factors: -10, x+5
x factors: x
-10*x*(x+5)*(x-5) = -10x(x+5)(x-5)
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