已知x,y满足(2X+3y+1)^2+/4x-9y-8/=0.求x,y的值.
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已知x,y满足(2X+3y+1)^2+/4x-9y-8/=0.求x,y的值.已知x,y满足(2X+3y+1)^2+/4x-9y-8/=0.求x,y的值.已知x,y满足(2X+3y+1)^2+/4x-9
已知x,y满足(2X+3y+1)^2+/4x-9y-8/=0.求x,y的值.
已知x,y满足(2X+3y+1)^2+/4x-9y-8/=0.求x,y的值.
已知x,y满足(2X+3y+1)^2+/4x-9y-8/=0.求x,y的值.
(2X+3y+1)^2+/4x-9y-8/=0
所以2x+3y+1=0
4x-9y-8=0
所以x=1/2 y=-2/3
(2X+3y+1)^2>=0
/4x-9y-8/>=0
所以(2X+3y+1)^2+/4x-9y-8/>=0
又(2X+3y+1)^2+/4x-9y-8/=0
必有(2X+3y+1)^2=0且/4x-9y-8/=0
即2X+3y+1=0且4x-9y-8=0
x=1/2,y=-2/3
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