Answer
Option B
Work Step by Step
$x^{2}$ - 12 xy - 4xy + $48y^{2}$
Find the GCD of the first two and the GDC of the last two terms.
x (x - 12y) + 4y (x - 12y)
We take (x - 12y) and factor it out which gives us.
(x - 12y) (x + 4y)
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