x/1x2+x/2x3+x/3x4+.+x/2007x2008=2007/代表分数线,数字之间的x代表乘号,希望能有好的回答吧!期待着你的到来.

因式分解x4+x3+2x2-x+3 因式分解：x4+x3+2x2 +x+1 x4+2x3+x2+1+2(x+x2)因式分解 x/1x2+x/2x3+x/3x4+.x/2010x2011=2010 解方程：x/1x2+x/2x3+x/3x4+.+x/2007x2008=2007 解方程x/1x2+x/2x3+x/3x4+.+x/2011x2011=2011 x5-x4+x3-x2+x-1因式分解 X5-X4+X3+X2+X+1因式分解 (2x4-5x2-4x+1)-(3x3-5x2-3x) X2+X+1=0 X4+2X3+4X2+3X+2=? 已知x2-3x+1=0,求x4-6x3+4x2+15x+2 3-X2+X-1分之X4+X3-2乘以x3+2x2+2x+2分之X四次方-1除以-2分之X3-X-X2+1化简 用矩阵法姐方程组：2x1-3x2 +x 3-x4 =3 3x 1+x2 +x3 +x 4=0 4x1 -x2 -x 3-x4 =7 -2x 1-x3 +x3 +x4 =-5 求出不等式解集1+x-x3-x4>0 x3-2x2+3 因式分解:2x4+3x3-6x2-3x+2 因式分解：x5-3x4+2x3-x2+3x-2 因式分解：x5-2x4-3x3+x2-2x-3 x4+4x3+3x2-2(x+3)因式分解