(a-2)(a2+2a+4)-【3a(a+1)2-2a(a-1)2-(3a+1)(3a-1)】+a(1+a)化简(要求有具体步骤)

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(a-2)(a2+2a+4)-【3a(a+1)2-2a(a-1)2-(3a+1)(3a-1)】+a(1+a)化简(要求有具体步骤)
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(a-2)(a2+2a+4)-【3a(a+1)2-2a(a-1)2-(3a+1)(3a-1)】+a(1+a)化简(要求有具体步骤)
(a-2)(a2+2a+4)-【3a(a+1)2-2a(a-1)2-(3a+1)(3a-1)】+a(1+a)化简(要求有具体步骤)

(a-2)(a2+2a+4)-【3a(a+1)2-2a(a-1)2-(3a+1)(3a-1)】+a(1+a)化简(要求有具体步骤)
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