│a-2│+(b+1)²+c²=0,求a²-2ab-5a²+12ac+3ab+-c²-8ac-2a²
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/05 19:49:47
![│a-2│+(b+1)²+c²=0,求a²-2ab-5a²+12ac+3ab+-c²-8ac-2a²](/uploads/image/z/3025556-44-6.jpg?t=%E2%94%82a-2%E2%94%82%2B%EF%BC%88b%2B1%EF%BC%89%26%23178%3B%2Bc%26%23178%3B%3D0%2C%E6%B1%82a%26%23178%3B-2ab-5a%26%23178%3B%2B12ac%2B3ab%2B-c%26%23178%3B-8ac-2a%26%23178%3B)
│a-2│+(b+1)²+c²=0,求a²-2ab-5a²+12ac+3ab+-c²-8ac-2a²
│a-2│+(b+1)²+c²=0,求a²-2ab-5a²+12ac+3ab+-c²-8ac-2a²
│a-2│+(b+1)²+c²=0,求a²-2ab-5a²+12ac+3ab+-c²-8ac-2a²
要想已知条件可得,三项必须都为0,所以A=2,b=-1.c=0,下面你化简自己代入,不会化简也可以直接带,只不过麻烦一些
a=2
b=-1
c=0
收起