学帮网因式分解x³-x²-x+1
来源：学生作业学帮网 编辑：学帮网 时间：2024/07/07 17:57:14
因式分解x³-x²-x+1
x³-x²-x+1
=(x³-x²)-(x-1)
= x²(x-1)-(x-1)
=(x²-1)(x-1)
=(x-1)²(x+1)
求采纳
x³-x²-x+1
=(x³+1)-(x²+x)
=(x+1)(x²-x+1)-(x+1)x
=(x+1)(x²-2x+1)
=(x+1)(x-1)²
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来源：学生作业学帮网 编辑：学帮网 时间：2024/07/07 17:57:14
因式分解x³-x²-x+1
x³-x²-x+1
=(x³-x²)-(x-1)
= x²(x-1)-(x-1)
=(x²-1)(x-1)
=(x-1)²(x+1)
求采纳
x³-x²-x+1
=(x³+1)-(x²+x)
=(x+1)(x²-x+1)-(x+1)x
=(x+1)(x²-2x+1)
=(x+1)(x-1)²