已知(9a^2)^3×(1/3)^4=4,求a^3的值

已知(9a^2)^3×(1/3)^4=4,求a^3的值
已知(9a^2)^3×(1/3)^4=4,求a^3的值

已知(9a^2)^3×(1/3)^4=4,求a^3的值
已知(9a^2)^3×(1/3)^4=4
9^3a^6×(1/3^4)=4
3^6a^6×(1/3^4)=4
3^2a^6=4
a^6=4/9
a^3=±2/3