分别求方程x²-3x+2=0与x²-x-2=0的解集A,B;并求A∩B,A∪B
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![分别求方程x²-3x+2=0与x²-x-2=0的解集A,B;并求A∩B,A∪B](/uploads/image/z/226595-11-5.jpg?t=%E5%88%86%E5%88%AB%E6%B1%82%E6%96%B9%E7%A8%8Bx%26%23178%3B-3x%2B2%3D0%E4%B8%8Ex%26%23178%3B-x-2%3D0%E7%9A%84%E8%A7%A3%E9%9B%86A%2CB%3B%E5%B9%B6%E6%B1%82A%E2%88%A9B%2CA%E2%88%AAB)
分别求方程x²-3x+2=0与x²-x-2=0的解集A,B;并求A∩B,A∪B
分别求方程x²-3x+2=0与x²-x-2=0的解集A,B;并求A∩B,A∪B
分别求方程x²-3x+2=0与x²-x-2=0的解集A,B;并求A∩B,A∪B
x²-3x+2=0的解是x=1或2,x²-x-2=0的解是x=-1或2,所以A∪B是{-1,1,2},A∩B是{2}