来自彭立云的问题
【一共四题解方程组!1.x-y=1,x2+xy+y2=12.x2+y2=6x,x+2y=03.x2-y2=3,x2-2xy+y2=14.4x2+4xy+y2=9,x2+5xy-6y2=0】
一共四题解方程组!
1.x-y=1,x2+xy+y2=1
2.x2+y2=6x,x+2y=0
3.x2-y2=3,x2-2xy+y2=1
4.4x2+4xy+y2=9,x2+5xy-6y2=0
1回答
2020-09-29 00:05