若(2x-y)²+/y+2/=0,求代数式【(x-y)²+(x+y)(x-y)】除2x的值答案是1/2
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若(2x-y)²+/y+2/=0,求代数式【(x-y)²+(x+y)(x-y)】除2x的值答案是1/2
若(2x-y)²+/y+2/=0,求代数式【(x-y)²+(x+y)(x-y)】除2x的值
答案是1/2
若(2x-y)²+/y+2/=0,求代数式【(x-y)²+(x+y)(x-y)】除2x的值答案是1/2