计算(6a^(n+2)-8a^n)/(-1/2a^(n-1))

计算(6a^(n+2)-8a^n)/(-1/2a^(n-1)) 计算：(-a^2)^n 计算:(3a^n+2+6a^n+1-9^n)÷3a^n-1 1.因式分解6（a-b)^2减8（a-b)^32.计算3a^(n+1)-6a^(n)+9a^(n-1)除以 三分之一a^(n-1 分式 计算：a^(2n+1)-6a^(2n)+9a^(2n-1) / a^(n+1)-4a^n+3a^(n-1) 计算(3a^n+1-6a^n+9a^n-1)/(1/3a^n-2) (3a^（n+1）+6a^（n+2）-9a^n)/3a^（n-1）是计算 计算：(6a^n+2-9a^n+1+3a^n-1)÷3a^n-1 高精度计算a^n [(a^2*a^n)^2(b^n*b)]^2计算 计算:(a^n+1)^2×(-a^3)^2n+1 计算(a^n+b)(a^n-b) 如果n是正整数,[(8a^n+3)-(6a^n+2)-(5a^n+1)]/(-a)^n 计算a^n=2 b^n=3 a^2n+b^3n=( ) 计算 (3A^N+2*B-2A^N*B^N-1+3B^N)*5A^N*B^N+3(N为正整数,n＞1) 计算a^2n+1-6a^2n+9a^2n-1/a^2-9除以a^n+1+4a^n+4a^n-1/a^2-4 因式分解:a^n+2-6a^n 计算｛[2^(n+1)]^2*(1/2)^(2n+1)}/(4^n*8^-2)的结果是（）A.1/6^4 B.2^(2n+5) C.2^(n^2-2n+6) D.(1/2)^(2n-7)