1.

\left. \begin{array} { l } { \text { The factors of } x ^ { 2 } + 4 y ^ { 2 } + 4 y - 4 x y - 2 x - 8 \text { are } } \\ { ( A ) ( x - 2 y - 4 ) ( x - 2 y + 2 ) } \\ { ( x ) ( x + 2 y - 4 ) ( x + 2 y + 2 ) } \end{array} \right.

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