(6a^n+2 +3a^n+1 -9a^n)/3a^n-1
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(6a^n+2 +3a^n+1 -9a^n)/3a^n-1
(6a^n+2 +3a^n+1 -9a^n)/3a^n-1
(6a^n+2 +3a^n+1 -9a^n)/3a^n-1
=6a^(n+2)/3a^(n-1)+3a^(n+1)/3a^(n-1)-9a^n/3a^(n-1)
=2a^(n+2-n+1)+a^(n+1-n+1)-3a^(n-n+1)
=2a^3+a^2-3a
(3a^n+1+6a^n+2-9a^n)/3a^n-1
(6a^n+2 +3a^n+1 -9a^n)/3a^n-1
计算:(3a^n+2+6a^n+1-9^n)÷3a^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)
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)是计算
(3a^n+1+6a^n+2-9a^n)/3a^n-1是计算题
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