计算:(a^n+1)^2×(-a^3)^2n+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:(6a^n+2-9a^n+1+3a^n-1)÷3a^n-1
(3a^(n+1)+6a^(n+2)-9a^n)/3a^(n-1)是计算
分式计算:(b^3n-1 )*c/(a^2n+1)除以 (b^3n-2)/(a^2n)
计算:b^(3n-1)/a^(2n-1)×c÷b^(3n-2)/a^2n
计算:-2a^n(3a^(n+1)+4a-1)=
(1/3a^ n+2 +2a^n+1) ÷ (-1/3 a ^ n-1 ) 计算
(2分之3a^n+3 -2a^n+1)÷(-3分之1a^n-1) 计算
计算:(2a-3b)^(4n+1)*(3b-2a)^(6n-1)
计算:(-3a^n+1b^n)*(1/3ab)*(-a^2c)
计算(3a的n+1次方-6a的n次方+9a的n-1次方)除以(3分之1a的n-2次方)