已知集合A=﹛2,4,a的3次方—2a平方—a+7﹜B=﹛-4,a+3,a的平方—2a+2,a的三次方+a的二次方+3a+7﹜且A∩B=﹛2,4,5﹜求实数a的值
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![已知集合A=﹛2,4,a的3次方—2a平方—a+7﹜B=﹛-4,a+3,a的平方—2a+2,a的三次方+a的二次方+3a+7﹜且A∩B=﹛2,4,5﹜求实数a的值](/uploads/image/z/5905044-36-4.jpg?t=%E5%B7%B2%E7%9F%A5%E9%9B%86%E5%90%88A%3D%EF%B9%9B2%2C4%2Ca%E7%9A%843%E6%AC%A1%E6%96%B9%E2%80%942a%E5%B9%B3%E6%96%B9%E2%80%94a%2B7%EF%B9%9CB%3D%EF%B9%9B-4%2Ca%2B3%2Ca%E7%9A%84%E5%B9%B3%E6%96%B9%E2%80%942a%2B2%2Ca%E7%9A%84%E4%B8%89%E6%AC%A1%E6%96%B9%2Ba%E7%9A%84%E4%BA%8C%E6%AC%A1%E6%96%B9%2B3a%2B7%EF%B9%9C%E4%B8%94A%E2%88%A9B%3D%EF%B9%9B2%2C4%2C5%EF%B9%9C%E6%B1%82%E5%AE%9E%E6%95%B0a%E7%9A%84%E5%80%BC)
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