3a^6÷3a^n-2

计算:(3a^n+2+6a^n+1-9^n)÷3a^n-1 计算：(6a^n+2-9a^n+1+3a^n-1)÷3a^n-1 （6a^n+2+3a^n+1-9a^n)÷1/2a^n-1 (3a^n+1+6a^n+2-9a^n)/3a^n-1 (6a^n+2 +3a^n+1 -9a^n)/3a^n-1 如果n是正整数,[(8a^n+3)-(6a^n+2)-(5a^n+1)]/(-a)^n a^n+2+a^n+1-3a^n因式分解 分式 计算：a^(2n+1)-6a^(2n)+9a^(2n-1) / a^(n+1)-4a^n+3a^(n-1) （a^m × a^2n+1）^3 ÷ a^2m-6n咋做啊 a^2n+2×(-a)^6n-3等于多少 a^2n=3,则a^6n=? 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 (3a^n+1+6a^n+2-9a^n)/3a^n-1是计算题 a^(n-1)+3a^(n)-6a^(n-2)因式分解.. a^3n=5,则2a^6n-a^9n= （3a的n+3次方+6a的n+2次方-9a的n+1次方）÷3a的n-1次方 3a^6÷3a^n-2