已知x+2y=11,x-2y=4,x\(x^2-2xy+y^2)除以(x^2+xy+y^2)\(x^3-y^3)+[(2x+2y)\(x-y)-2]的值正确补加悬赏

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已知x+2y=11,x-2y=4,x\(x^2-2xy+y^2)除以(x^2+xy+y^2)\(x^3-y^3)+[(2x+2y)\(x-y)-2]的值正确补加悬赏已知x+2y=11,x-2y=4,x

已知x+2y=11,x-2y=4,x\(x^2-2xy+y^2)除以(x^2+xy+y^2)\(x^3-y^3)+[(2x+2y)\(x-y)-2]的值正确补加悬赏
已知x+2y=11,x-2y=4,x\(x^2-2xy+y^2)除以(x^2+xy+y^2)\(x^3-y^3)+[(2x+2y)\(x-y)-2]的值
正确补加悬赏

已知x+2y=11,x-2y=4,x\(x^2-2xy+y^2)除以(x^2+xy+y^2)\(x^3-y^3)+[(2x+2y)\(x-y)-2]的值正确补加悬赏
x+2y=11,x-2y=4.x=15/2,y=7/4
原式=(x+4y)/(x-y)=58/23