x3+x+2 怎么因式分解 详细过程谢谢

2025-06-23 22:02:17
推荐回答(1个)
回答1:

x³+x+2
=(x³+1)+(x+1)
=(x+1)(x²-x+1)+(x+1)
=(x+1)(x²-x+1+1)
=(x+1)(x²-x+2)