若36x^2-12xy+y^2=0,则x/y+y/x的值是
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若36x^2-12xy+y^2=0,则x/y+y/x的值是
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若|x-3|+(y+2)²=0,则(x-y+4xy/x-y)(x+y-4xy/x+y)的值是
若x²+xy-2y²=0,则x²+3xy+y²/x²+y²
已知x-xy=20,xy-y=12,则x-y= ,-2xy+x+y=
已知x-xy=20 xy-y=12,则x-y=( ),x+y-2xy=( ).
已知:x-xy=20,xy-y=12,则x-y=...,-2xy+x+y=...
若x+y-5xy=0,求(2x-3xy+2y)/(x+2xy+y)的值
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若x+y分之xy=2,则-x+3xy-y分之3x-xy+3y=多少?
若xy/x+y=2,则3x-5xy+3y/-x+3xy-y=?/是分之
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若xy/x+y=2,则3x-xy+3y/-x+3xy-y=
若集合{x,xy,lg(xy)}={0,|x|,y},求log8(x^2+y^2)
{x,xy,lg(xy)}={0,|x|,y} 则log8(X^2+Y^2)