求解一个方程，最好有解题过

来源：百度知道 编辑：UC知道 时间：2024/05/27 01:13:42
3249 = 2x²+y
3136 = (x-36.94)²+(64.11-y)²

2元2次方程式...
┍3249=2x²+y``````````````````````````①
┕3136=(x-36.94)²+(64.11-y)²``````````②
解:由①得y=3249-2x²```````````````````③
```将③代入②得3136=(x-36.94)²+[64.11-(3249-2x²)]²
```````````````````=x²-73.88x+36.94²+(2x²-3184.89)²
```````````````````=x²-73.88x+36.94²+(2x²)²-12739.56+3184.89²
````````````````接下来的自己能算啦吧!