(2x+y)^2-4x-2y-3=0怎么化简
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(2x+y)^2-4x-2y-3=0怎么化简
(2x+y)^2-4x-2y-3=0怎么化简
(2x+y)^2-4x-2y-3=0怎么化简
(2x+y)^2-4x-2y-3=0
(2x+y)^2-2(2x+y)-3=0
(2x+y+1)(2x+y-3)=0
2x+y=-1或2x+y=3
(2x+y)^2-4x-2y-3=0
(2x+y)^2-2(2x+y)-3=0
(2x+y-3)(2x+y+1)=0
……
(2x+y)^2-2(2x+y)-3=0
[(2x+y)-3][(2x+y)+1]=0
剩下的自己算吧
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