Question

25^25×7^30 phần 5^48×49^16

 

 

 

Answer 1

\(\frac{25^{25}.7^{30}}{5^{48}.49^{16}}=\frac{\left(5^2\right)^{25}.7^{30}}{5^{48}.\left(7^2\right)^{16}}=\frac{5^{50}.7^{30}}{5^{48}.7^{32}}=\frac{5^2}{7^2}=\frac{25}{49}\)

hok tốt!!!

Answer 2

\(\frac{25^{25}.7^{30}}{5^{48}.49^{16}}=\frac{\left(5^2\right)^{25}.7^{30}}{5^{48}.\left(7^2\right)^{16}}=\frac{5^{30}.7^{30}}{5^{48}.7^{32}}=\frac{5^{48}.5^2.7^{30}}{5^{48}.7^{30}.7^2}=\frac{25}{49}\)

Answer 3

\(\frac{25^{25}.7^{30}}{5^{48}.49^{16}}\)

\(=\frac{\left(5^2\right)^{25}.7^{30}}{5^{48}.\left(7^2\right)^{16}}\)

\(=\frac{5^{50}.7^{30}}{5^{48}.7^{32}}\)

\(=\frac{5^2}{7^2}\)

\(=\frac{25}{49}\)