1,2(2+2xy)-(x²+4y²) 2,1,2(2+2xy)-(x²+4y²) 2,(x²-2x)²+2(x²-2x)+1 3,已知:x+y=6,xy=4,求x与y的值
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![1,2(2+2xy)-(x²+4y²) 2,1,2(2+2xy)-(x²+4y²) 2,(x²-2x)²+2(x²-2x)+1 3,已知:x+y=6,xy=4,求x与y的值](/uploads/image/z/1239322-58-2.jpg?t=1%2C2%EF%BC%882%2B2xy%EF%BC%89-%EF%BC%88x%26%23178%3B%2B4y%26%23178%3B%EF%BC%89+2%2C1%2C2%EF%BC%882%2B2xy%EF%BC%89-%EF%BC%88x%26%23178%3B%2B4y%26%23178%3B%EF%BC%89+2%2C%EF%BC%88x%26%23178%3B-2x%EF%BC%89%26%23178%3B%2B2%EF%BC%88x%26%23178%3B-2x%EF%BC%89%2B1+3%2C%E5%B7%B2%E7%9F%A5%3Ax%2By%3D6%2Cxy%3D4%2C%E6%B1%82x%E4%B8%8Ey%E7%9A%84%E5%80%BC)
1,2(2+2xy)-(x²+4y²) 2,1,2(2+2xy)-(x²+4y²) 2,(x²-2x)²+2(x²-2x)+1 3,已知:x+y=6,xy=4,求x与y的值
1,2(2+2xy)-(x²+4y²) 2,
1,2(2+2xy)-(x²+4y²) 2,(x²-2x)²+2(x²-2x)+1 3,已知:x+y=6,xy=4,求x与y的值
1,2(2+2xy)-(x²+4y²) 2,1,2(2+2xy)-(x²+4y²) 2,(x²-2x)²+2(x²-2x)+1 3,已知:x+y=6,xy=4,求x与y的值
这是一道题还是三道题
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