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1. $2 x^{2} - 5 x y + 2 y^{2}$

Answer: Option B

Explanation:

2 x^{2} - 5 xy + 2 y^{2} = 2 x^{2} - 4 xy - xy + 2 y^{2} = 2 x (x - 2 y) - y (x - 2 y) = (x - 2 y) (2 x - y)

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