| x2+6x+2 |
| x2+x+2 |
∴
| x2+6x+2 |
| x2+x+2 |
两边平方得:x2+6x+2=x2+2x
| x2+x+2 |
整理得:5x-x2=2x
| x2+x+2 |
当x=0时,原方程成立;
当x≠0时,5-x=2
| x2+x+2 |
两边平方整理得:3x2+14x-17=0,
解得:x=1或x=-
| 17 |
| 3 |
经检验均为原方程的解,
故原方程的解为:x=0或x=1或x=-
| 17 |
| 3 |
| x2+6x+2 |
| x2+x+2 |
| x2+6x+2 |
| x2+x+2 |
| x2+6x+2 |
| x2+x+2 |
| x2+x+2 |
| x2+x+2 |
| x2+x+2 |
| 17 |
| 3 |
| 17 |
| 3 |