2x的四次方-x²-1怎么因式分解?x²-(a+1)x+a怎么因式分解?

来源:学生作业帮助网 编辑:作业帮 时间:2024/07/17 03:06:40

2x的四次方-x²-1怎么因式分解?x²-(a+1)x+a怎么因式分解?
2x的四次方-x²-1怎么因式分解?x²-(a+1)x+a怎么因式分解?

2x的四次方-x²-1怎么因式分解?x²-(a+1)x+a怎么因式分解?
2x^4-x²-1
=(2x²+1)(x²-1)
=(2x²+1)(x+1)(x-1)
x²-(a+1)x+a
=(x-a)(x-1)

2x^4-x^2-1
=(x^2-1)(2x^2+1)
=(x+1)(x-1)(2x^2+1)
x^2-(a+1)x+a
=(x-1)(x-a)
x -1
x -a

人人人人人人人人人人人人人人人人人人人人人人人人人人人人人人人人人人人人人人人人人人人人人人人人人人人人人人人人人人人人人人人人