A. \(32^9=\left(2^5\right)^9=2^{45}\)
\(^{16^{10}=\left(2^4\right)^{10}=2^{40}}\)
Vì \(^{2^{45}>2^{40}}\)nên \(32^9>16^{10}\)
B. \(5^{300}=5^{3\times100}=\left(5^3\right)^{100}=125^{100}\)
\(3^{500}=3^{5.100}=\left(3^5\right)^{100}=243^{100}\)
Vì \(125^{100}< 243^{100}\) nên \(5^{300}< 3^{500}\)