1. \(12^7:6^7=\left(6.2\right)^7:6^7=6^7.2^7:6^7=2^7\)
2.\(18^3:9^3=\left(9.2\right)^3:9^3=9^3.2^3:9^3=2^3\)
3.\(27^5:81^3=\left(3^3\right)^5:\left(3^4\right)^3=3^{15}:3^{12}=3^3\)
4.\(125^5:25^4=\left(25^2\right)^5:25^4=25^{10}:25^4=25^6\)
Học tốt nha bạn!