因式分解:x4+x3+6x2+5x+5
X5-X4+X3+X2+X+1因式分解
x5-x4+x3-x2+x-1因式分解
x4+5x3+5x2+5x-6=0
x8+x7+x6+x5+x4+x3+x2+x+1因式分解
能者善解...x4-x3+6x2-x+15是因式分解哈
求解一个方程急 X(1次方)+X2+X3=5 X2+X3+X4=1 X3+X4+X5=-5 X4+X5+X1=-3 X5
求齐次线性方程组{X1+X2+3X3+2X4=0 2X1+3X2+X3-X4=0 5X1+6X2+10X3+5X4=0}
解线性方程组 求齐次线性方程组X1+X2+X3+X4=0,2X1+3X2-X3-2X4=0,5X1+6X2+2X3+X4
分解因式:-27x3+8 ,(x2-5x+2)(x2-5x+4)-24 ,x5+x4+x3+x2+x1+1
解线性方程组 求齐次线性方程组X1+X2+X3+X4=0,2X1+3X2+4X3+5X4=0,4X1+5X2+6X3+7
2X1+X2-5X3+X4=8,X1-3X2-6X4=9,2X2-X3+2X4=-5,X1+4X2-7X3+6X4=0.
求线性方程组 x2-x3-x4=0 x1+x2-x3+3x4=1 x1-x2+x3+5x4=-1 x1+2x2-2x3+