设A=2x-3xy+y+2x+2y,B=4x-6xy+2y-3x-y,若|x-2a丨+(y-3)=0,且B-2A=a,求
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设A=2x-3xy+y+2x+2y,B=4x-6xy+2y-3x-y,若|x-2a丨+(y-3)=0,且B-2A=a,求a的值
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![设A=2x-3xy+y+2x+2y,B=4x-6xy+2y-3x-y,若|x-2a丨+(y-3)=0,且B-2A=a,求](/uploads/image/z/18857022-6-2.jpg?t=%E8%AE%BEA%3D2x-3xy%2By%2B2x%2B2y%2CB%3D4x-6xy%2B2y-3x-y%2C%E8%8B%A5%7Cx-2a%E4%B8%A8%2B%28y-3%29%3D0%2C%E4%B8%94B-2A%3Da%2C%E6%B1%82)
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设A=2x-3xy+y+x-3y,B=4x-6xy+2y+4x-y,若|x-3a|+(y+3)=0,且B-2A=a.求A
设A=2x*-3xy+y*-x+2y,B=4x*-6xy+2y*-3x-y,若|x-2a|+(y+3)*=0,且B-2A
设A=2x方-3xy+y方-x+2y,B=4x方-6xy+2y方+3x-y.若|x-2a|+(y+3)的平方=0,且B-
设A=2x²-3xy+y²-x+2y,B=4x²-6xy+2y²-3x-y,若x
设A=2x²-3xy+y²-x+2y,B=4x²-6xy+2y²+3x-y.若x
设A=2x^2-3xy+y^2-x+2y,B=4x^2-6xy+2y^2-3x-y.求B-2A;若|x-2a|+(y+3
设A=2X²-3xy+y²-x+2y,B=4x²-6xy+2y²-3x-y,若|
设A=2x²-3xy+y²-x+2y,B=4x²-6xy+2y²+3x-y 若|
设A=2x²-3xy+y²-x+2y,B=4x²-6xy+2y²-3x-y,若│
设A=2x²-3xy+y²-x+2y,B=4x²-6xy+2y²-3x-y,若|
已知:A=X*X-3xy+y*y,B=2x*x+xy-3y*3y.求A+B,A-B,A+2B
1.设A=2x²-3xy+y²-x+2y,B=4x²-6xy+2y²-3x-y,