x3-x2-3x+2=0怎么解

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x3-x2-3x+2=0怎么解x3-x2-3x+2=0怎么解x3-x2-3x+2=0怎么解X^3-2X^2+X^2-3X+2=0X^2(X-2)+(X-1)(X-2)=0(X-2)(X^2+X-1)=

x3-x2-3x+2=0怎么解
x3-x2-3x+2=0怎么解

x3-x2-3x+2=0怎么解
X^3-2X^2+X^2-3X+2=0
X^2(X-2)+(X-1)(X-2)=0
(X-2)(X^2+X-1)=0
X=0,X2,3=(-1±√5)/2

x3-x2-3x+2=0
(x^3-x^2-2x)-(x-2)=0
x(x+1)(x-2)-(x-2)=0
(x-2)(x^2+x-1)=0
x=2
x^2+x-1=0
x=(-1+-根号5)/2

x³-x²-3x+2=(x-2)(x²+x-1)=0
解x=2或(-1±√5)/2

x3-x2-3x+2=0怎么解解方程x3-4x3+2x-3=0x3-4x2+2x-3=0 x3+3x2+2x=0这么解啊? Y=X3+3X2+3X+2怎么算 x3 + 3x2 + -4x = 0要过程~怎么解~x立方 3x平方用基础解系表示线性方程组的全部解（1）【2x1-x2+x3-2x4=1 】（2）【x1-2x2+x3=-5】（3）【x1-x2-x3+x4=0】【-x1+x2+2x3+x4=0 】【x1+5x2-7x3=2】【x1-x2+x3-3x4=1】【x1-x2-2x3+2x4=-0.5 】【3x1+x2-5x3=-8】【x1-x2-2x x3-3x2+x+1=0怎么变成(x-1)(x2-2x-1)=0请尽快回答若 x2-3x+1=0,求（2x2×x3-5x2×x2+2 x3-8x2 ）÷（x2+1 ）的值解线性方程组 X1-2X2+3X3-4X4=0 X2-X3+X4=0 X1+3X2-3X4=0 X解线性方程组X1-2X2+3X3-4X4=0X2-X3+X4=0X1+3X2-3X4=0X1-4X2+3X3-2X4=0 这个方程组怎么解 X4+2X3-X2+2X+1=0 6x2-2x3-8=0,求x怎么解啊老师 X3+3X2-4=0解X 解方程：x3+x2-x+2=0 解线性方程组 x1-x2-x3=2 x1+x2+4x3=0 3x1+5x3=3 已知x2+5x-4=0,求x3+6x2+x+2的值已知x2+x-1=0,求x3+2x2+3的值 x3-3x2+8=0怎么解啊 2x3+4x- x2-(x+x2-2x3) ,其中x= -3 (4x-10)X2=(x+10)X3 怎么解