|2x+3y+5|+(3x+2Y-25)2=0.x=多少,y=多少……求回答谢谢……
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|2x+3y+5|+(3x+2Y-25)2=0.x=多少,y=多少……求回答谢谢……|2x+3y+5|+(3x+2Y-25)2=0.x=多少,y=多少……求回答谢谢……|2x+3y+5|+(3x+2Y
|2x+3y+5|+(3x+2Y-25)2=0.x=多少,y=多少……求回答谢谢……
|2x+3y+5|+(3x+2Y-25)2=0.x=多少,y=多少……求回答谢谢……
|2x+3y+5|+(3x+2Y-25)2=0.x=多少,y=多少……求回答谢谢……
绝对值和平方大于等于0,相加等于0,若有一个大于0,则另一个小于0,不成立.
所以两个都等于0
所以
2x+3y+5=0 (1)
3x+2y-25=0 (2)
(1)×3-(2)×2
5y+65=0
y=-13
x=(25-2y)/3=17
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