A = 2530 = (52)30 = 560
B = 12520 = (53)20 = 560
⇒ A = B
\(A=25^{30}=\left(5^2\right)^{30}=5^{60}\)
\(B=125^{20}=\left(5^3\right)^{20}=5^{60}\)
⇒A=B
\(TL:\)
\(A=25^{30}=\left(5^2\right)^{30}=5^{60}\)
\(B=125^{20}=\left(5^3\right)^{20}=5^{60}\)
\(\text{Từ đó}\Rightarrow A=B\)
\(\text{Hok tốt!}\)