Question

10*7^log(7)4=
2^6*5^7/10^5=

Answer 1

$10*7^{log_74}=10*4=40\\\\ \frac{2^6*5^7}{10^5}= \frac{2^6*5^6*5}{10^5}= \frac{(2*5)^6*5}{10^5}= \frac{10^6*5}{10^5}=10*5=50$