a²-5a=7.求(a-1)(2a-1)-(a+1)²-3的值.若实数a满足a²-2a+1=0.则2a²-4a+5=______0.2^2009×5^2010=______
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![a²-5a=7.求(a-1)(2a-1)-(a+1)²-3的值.若实数a满足a²-2a+1=0.则2a²-4a+5=______0.2^2009×5^2010=______](/uploads/image/z/3791353-49-3.jpg?t=a%26%23178%3B-5a%EF%BC%9D7.%E6%B1%82%EF%BC%88a-1%EF%BC%89%EF%BC%882a-1%EF%BC%89-%EF%BC%88a%2B1%EF%BC%89%26%23178%3B-3%E7%9A%84%E5%80%BC.%E8%8B%A5%E5%AE%9E%E6%95%B0a%E6%BB%A1%E8%B6%B3a%26%23178%3B-2a%2B1%EF%BC%9D0.%E5%88%992a%26%23178%3B-4a%2B5%EF%BC%9D______0.2%5E2009%C3%975%5E2010%EF%BC%9D______)
a²-5a=7.求(a-1)(2a-1)-(a+1)²-3的值.若实数a满足a²-2a+1=0.则2a²-4a+5=______0.2^2009×5^2010=______
a²-5a=7.求(a-1)(2a-1)-(a+1)²-3的值.
若实数a满足a²-2a+1=0.则2a²-4a+5=______
0.2^2009×5^2010=______
a²-5a=7.求(a-1)(2a-1)-(a+1)²-3的值.若实数a满足a²-2a+1=0.则2a²-4a+5=______0.2^2009×5^2010=______
若实数a满足a²-2a+1=0.则2a²-4a+5=3.
0.2^2009×5^2010=5