X5-X4+X3+X2+X+1因式分解

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X5-X4+X3+X2+X+1因式分解X5-X4+X3+X2+X+1因式分解X5-X4+X3+X2+X+1因式分解LS你没有写对(X+1)(X^4-X^3+X^2+1)=1+X+X^2+X^5楼主的那

X5-X4+X3+X2+X+1因式分解
X5-X4+X3+X2+X+1因式分解

X5-X4+X3+X2+X+1因式分解
LS 你没有写对
(X+1)(X^4-X^3+X^2+1)
=1 + X + X^2 + X^5
楼主的那个题目如果是:
x^5 - x^4 + x^3 + x^2 + 1
没有因式得提拉

X5-X4+X3+X2+X+1
=X^3(X^2-1)+X^2(X+1)+(X+1)
=X^3(X+1)(X-1)+X^2(X+1)+(X+1)
=(X+1)(X^4-X^3+X^2+1)

什么来的？什么是X5，是5X 吧？

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