因式分解2a+a²+b²-1 (a²+1)²-4a²
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/04 23:07:10
![因式分解2a+a²+b²-1 (a²+1)²-4a²](/uploads/image/z/1333766-38-6.jpg?t=%E5%9B%A0%E5%BC%8F%E5%88%86%E8%A7%A32a%2Ba%26%23178%3B%2Bb%26%23178%3B-1+%EF%BC%88a%26%23178%3B%2B1%EF%BC%89%26%23178%3B-4a%26%23178%3B)
因式分解2a+a²+b²-1 (a²+1)²-4a²
因式分解2a+a²+b²-1 (a²+1)²-4a²
因式分解2a+a²+b²-1 (a²+1)²-4a²
2a+a²+b²-1
=(a+b)²-1
=(a+b+1)(a+b-1)
(a²+1)²-4a²
= (a²+1+2a)(a²+1-2a)
= (a+1)²(a-1)²
如果本题有什么不明白可以追问,