已知:集合A={2,-1,X2-X+1},B={2Y,-4,X+4},且A∩B={-1,7},求X,Y的值
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![已知:集合A={2,-1,X2-X+1},B={2Y,-4,X+4},且A∩B={-1,7},求X,Y的值](/uploads/image/z/5467604-68-4.jpg?t=%E5%B7%B2%E7%9F%A5%EF%BC%9A%E9%9B%86%E5%90%88A%3D%7B2%2C-1%2CX2-X%2B1%7D%2CB%3D%7B2Y%2C-4%2CX%2B4%7D%2C%E4%B8%94A%E2%88%A9B%3D%7B-1%2C7%7D%2C%E6%B1%82X%2CY%E7%9A%84%E5%80%BC)
已知:集合A={2,-1,X2-X+1},B={2Y,-4,X+4},且A∩B={-1,7},求X,Y的值
已知:集合A={2,-1,X2-X+1},B={2Y,-4,X+4},且A∩B={-1,7},求X,Y的值
已知:集合A={2,-1,X2-X+1},B={2Y,-4,X+4},且A∩B={-1,7},求X,Y的值
X2-X+1=7 先求x,然后根据B求Y