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Which of the following expressions has a factor of

(x - 6)

, where

m

is a negative integer constant?

4 x^{2} - 24 x - 42 m

4 x^{2} - 64 x - 42 m

4 x^{2} - 88 x - 42 m

4 x^{2} - 108 x - 42 m