x4+2x3+x2+1+2(x+x2)因式分解,在线等!~T_T~

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x4+2x3+x2+1+2(x+x2)因式分解,在线等!~T_T~x4+2x3+x2+1+2(x+x2)因式分解,在线等!~T_T~x4+2x3+x2+1+2(x+x2)因式分解,在线等!~T_T~x

x4+2x3+x2+1+2(x+x2)因式分解,在线等!~T_T~
x4+2x3+x2+1+2(x+x2)
因式分解,在线等!~T_T~

x4+2x3+x2+1+2(x+x2)因式分解,在线等!~T_T~
x4+2x3+x2+1+2(x+x2)
=x4+2x3+3x2+1+2x
=x4+2x3+2x2+x2+1+2x
=x2(x2+2x+1)+(X+1)2+x2
=x2(x+1)2+(x+1)2+x2