(xy+1)(x+1)(y+1)+xy
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x)Ө6Ԩ vEMR>Vq;t(%la2d!H6].H*] SBBBWj$ف =
xy-1+x-y
(xy+1)(x+1)(y+1)+xy
(xy+1)(x+1)(y+1)+xy
(xy+1)(x+1)(y+1)+xy
分解因式(xy+1)(x+y+xy+1)+xy
.(x+y-2)(x+y-2xy)+(xy-1)^2
因式分解xy-x-y+1
xy+x+y+1因式分解
1-x-y+xy 因式分解
因式分解:xy+x+y+1
xy-1+x-y因式分解
xy-x-y+1因式分解
钻机XY-1 ,X,Y,
化简xy-1-x+y
计算3xy[2xy-x(y-2)+x-1]
xy(xy+1)+xy+3-2(x+y+1/2)-(x+y-1)^2因式分解
因式分解(x+y)(x+y+2xy)+(xy+1)(xy-1)
分解因式(x+y)(x+y+2xy)+(xy+1)(xy-1)