(x-x²-1/1-x)·x²-2x+1/x²-x+1求值.(x-x²-1/1-x)·x²-2x+1/x²-x+1
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![(x-x²-1/1-x)·x²-2x+1/x²-x+1求值.(x-x²-1/1-x)·x²-2x+1/x²-x+1](/uploads/image/z/342800-8-0.jpg?t=%EF%BC%88x-x%26%23178%3B-1%2F1-x%EF%BC%89%C2%B7x%26%23178%3B-2x%2B1%2Fx%26%23178%3B-x%2B1%E6%B1%82%E5%80%BC.%EF%BC%88x-x%26%23178%3B-1%2F1-x%EF%BC%89%C2%B7x%26%23178%3B-2x%2B1%2Fx%26%23178%3B-x%2B1)
(x-x²-1/1-x)·x²-2x+1/x²-x+1求值.(x-x²-1/1-x)·x²-2x+1/x²-x+1
(x-x²-1/1-x)·x²-2x+1/x²-x+1
求值.(x-x²-1/1-x)·x²-2x+1/x²-x+1
(x-x²-1/1-x)·x²-2x+1/x²-x+1求值.(x-x²-1/1-x)·x²-2x+1/x²-x+1
(x-x²-1/1-x)·x²-2x+1/x²-x+1
=(x-x²-1/x²-x+1)·x²-2x+1/(1-x)
=-1*(1-x)
=x-1
答案是x-1