(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)
问题描述:
(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)
答
-9
(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)
-9