2a²+3b²-12b+12a+30=0,求a的b平方的值
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/09 06:32:54
![2a²+3b²-12b+12a+30=0,求a的b平方的值](/uploads/image/z/8666104-40-4.jpg?t=2a%26%23178%3B%EF%BC%8B3b%26%23178%3B%EF%BC%8D12b%EF%BC%8B12a%EF%BC%8B30%EF%BC%9D0%2C%E6%B1%82a%E7%9A%84b%E5%B9%B3%E6%96%B9%E7%9A%84%E5%80%BC)
x)3JTS64~8 54J
%
klcSY-IOwn~6m'aMR>&誁چX4CTk %j[jjk Th"63)522` [8\4VX!A.0[C<;P ]
2a²+3b²-12b+12a+30=0,求a的b平方的值
2a²+3b²-12b+12a+30=0,求a的b平方的值
2a²+3b²-12b+12a+30=0,求a的b平方的值
2a²+3b²-12b+12a+30=0,
2a²+12a+18+3b²-12b+12=0
2(a²+6a+9)+3(b²-4b+4)=0
2(a+3)^2+3(b-2)^2=0
(a+3)=0 (b-2)=0
a=-3 b=2
a的b平方的值=(-3)^4=81