X3-X2-X+1=0怎么进行因式分解啊?

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X3-X2-X+1=0怎么进行因式分解啊?X3-X2-X+1=0怎么进行因式分解啊?X3-X2-X+1=0怎么进行因式分解啊?X3-X-(X2-1)=x(x2-1)-(x2-1)=(x2-1)(x-1

X3-X2-X+1=0怎么进行因式分解啊?
X3-X2-X+1=0怎么进行因式分解啊?

X3-X2-X+1=0怎么进行因式分解啊?
X3-X-(X2-1)
=x(x2-1)-(x2-1)
=(x2-1)(x-1)
=(x+1)(x-1))(x-1)
=(x+1)(x-1)²