4b²c²-﹙b²+c²-a²﹚²
来源:学生作业帮助网 编辑:作业帮 时间:2024/09/02 19:22:31
![4b²c²-﹙b²+c²-a²﹚²](/uploads/image/z/3712672-64-2.jpg?t=4b%26%23178%3Bc%26%23178%3B%EF%BC%8D%EF%B9%99b%26%23178%3B%EF%BC%8Bc%26%23178%3B%EF%BC%8Da%26%23178%3B%EF%B9%9A%26%23178%3B)
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4b²c²-﹙b²+c²-a²﹚²
4b²c²-﹙b²+c²-a²﹚²
4b²c²-﹙b²+c²-a²﹚²
4b²c²-﹙b²+c²-a²﹚²
=(2bc+b^2+c^2-a^2)(2bc-b^2-c^2+a^2)
=((b+c)^2-a^2)(a^2-(b-c)^2)
=(b+c+a)(b+c-a)(a+b-c)(a-b+c)