题目：（2x+3y+5）²+/3x+2y/25/=0
所以
2x+3y+5=0
(3x+2y)/25=0
化简
2x+3y=-5
3x+2y=0
两式相减
x-y=5
x=y+5代入3x+2y=0
3y+15+2y=0
5y=-15
y=-3
x=2