a) \(25^6\cdot125^3=\left(5^2\right)^6\cdot\left(5^3\right)^3=5^{12}\cdot5^9=5^{21}\)
b) \(625^5:25^7=\left(5^4\right)^5:\left(5^2\right)^7=5^{20}:5^{14}=5^6\)
c) \(12^3\cdot3^3=\left(12\cdot3\right)^3=36^3\)
\(a)25^6.125^3=\left(5^2\right)^6.\left(5^3\right)^3=5^{12}.5^9=5^{21}\)
\(b)625^5:25^7=\left(5^4\right)^5:\left(5^2\right)^7=5^{20}:5^{14}=5^6\)
\(c)12^3.3^3=\left(12.3\right)^3=36^3\)
Chúc bn học tốt!