先化简再求值.1/2x-2(x-1/3y²)+(-3/2x+1/3y²),其中x,y满足(x+先化简再求值.1/2x-2(x-1/3y²)+(-3/2x+1/3y²),其中x,y满足(x+2)²+|y-2/3|=0

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先化简再求值.1/2x-2(x-1/3y²)+(-3/2x+1/3y²),其中x,y满足(x+先化简再求值.1/2x-2(x-1/3y²)+(-3/2x+1/3y

先化简再求值.1/2x-2(x-1/3y²)+(-3/2x+1/3y²),其中x,y满足(x+先化简再求值.1/2x-2(x-1/3y²)+(-3/2x+1/3y²),其中x,y满足(x+2)²+|y-2/3|=0
先化简再求值.1/2x-2(x-1/3y²)+(-3/2x+1/3y²),其中x,y满足(x+
先化简再求值.
1/2x-2(x-1/3y²)+(-3/2x+1/3y²),
其中x,y满足(x+2)²+|y-2/3|=0

先化简再求值.1/2x-2(x-1/3y²)+(-3/2x+1/3y²),其中x,y满足(x+先化简再求值.1/2x-2(x-1/3y²)+(-3/2x+1/3y²),其中x,y满足(x+2)²+|y-2/3|=0