-(x1)2+2(x1)-(-(x2)2+2(x2))怎么化简成(x1-x2)(2-x1-x2)

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-(x1)2+2(x1)-(-(x2)2+2(x2))怎么化简成(x1-x2)(2-x1-x2)
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-(x1)2+2(x1)-(-(x2)2+2(x2))怎么化简成(x1-x2)(2-x1-x2)
-(x1)2+2(x1)-(-(x2)2+2(x2))怎么化简成(x1-x2)(2-x1-x2)

-(x1)2+2(x1)-(-(x2)2+2(x2))怎么化简成(x1-x2)(2-x1-x2)