
化简(a²+7a+10/a²-a+1)*(a3+1/a²+4a+4)÷(a+1/a+2)
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(a²+7a+10/a²-a+1)*(a3+1/a²+4a+4)÷(a+1/a+2)
=[(a+2)(a+5)/(a²-a+1)]*[(a+1)(a²-a+1)/(a+2)²]*(a+2)/(a+1)
=a+5
希望能帮到你O(∩_∩)O
=[(a+2)(a+5)/(a²-a+1)]*[(a+1)(a²-a+1)/(a+2)²]*(a+2)/(a+1)
=a+5
希望能帮到你O(∩_∩)O
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