(1/3a^ n+2 +2a^n+1) ÷ (-1/3 a ^ n-1 ) 计算
问题描述:
(1/3a^ n+2 +2a^n+1) ÷ (-1/3 a ^ n-1 ) 计算
答
(1/3a^ n+2 +2a^n+1) ÷ (-1/3 a ^ n-1 ) = -a³-6a²详解(1/3a^ n+2 +2a^n+1) ÷ (-1/3 a ^ n-1 ) =(1/3a^ n+2 ) ÷ (-1/3 a ^ n-1 ) + (2a^n+1) ÷ (-1/3 a ^ n-1 ) =-a^(n+2-n+1) - 6a^(n+1-n+1)=-a³-6a²