\(4^{15}.5^{30}=\left(2^2\right)^{15}.5^{30}=2^{30}.5^{30}=10^{30}\)
\(4^{15}.5^{30}=4^{15}.\left(5^2\right)^{15}=4^{15}.25^{15}=\left(4.25\right)^{15}=100^{15}\)
415.530 = 415.(52)15 = 415.2515 = (4.25)15 = 10015
ra 10^30 vàcách làm như bạn lê nguyên hạo![]()