已知集合M={x│x=1+a²,a∈N*},P={x│x=a²-4a+5,a∈N*},判断集合M与P的关系.第一步解:对于任意x∈M,有x=1+a²=(a+2)²-4(a+2)+5 不大懂 x=1+a²是通过什么样的办法和x=a²-4a+5变
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![已知集合M={x│x=1+a²,a∈N*},P={x│x=a²-4a+5,a∈N*},判断集合M与P的关系.第一步解:对于任意x∈M,有x=1+a²=(a+2)²-4(a+2)+5 不大懂 x=1+a²是通过什么样的办法和x=a²-4a+5变](/uploads/image/z/7217263-55-3.jpg?t=%E5%B7%B2%E7%9F%A5%E9%9B%86%E5%90%88M%3D%EF%BD%9Bx%E2%94%82x%3D1%2Ba%26%23178%3B%2Ca%E2%88%88N%2A%EF%BD%9D%2CP%3D%EF%BD%9Bx%E2%94%82x%3Da%26%23178%3B-4a%2B5%2Ca%E2%88%88N%2A%EF%BD%9D%2C%E5%88%A4%E6%96%AD%E9%9B%86%E5%90%88M%E4%B8%8EP%E7%9A%84%E5%85%B3%E7%B3%BB.%E7%AC%AC%E4%B8%80%E6%AD%A5%E8%A7%A3%EF%BC%9A%E5%AF%B9%E4%BA%8E%E4%BB%BB%E6%84%8Fx%E2%88%88M%2C%E6%9C%89x%3D1%2Ba%26%23178%3B%3D%EF%BC%88a%2B2%EF%BC%89%26%23178%3B-4%EF%BC%88a%2B2%EF%BC%89%2B5+%E4%B8%8D%E5%A4%A7%E6%87%82+x%3D1%2Ba%26%23178%3B%E6%98%AF%E9%80%9A%E8%BF%87%E4%BB%80%E4%B9%88%E6%A0%B7%E7%9A%84%E5%8A%9E%E6%B3%95%E5%92%8Cx%3Da%26%23178%3B-4a%2B5%E5%8F%98)
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