Question

2log x2*5log3x =400 Как решать?)

Answer 1

2^log3(x^2) * 5^log3(x)=400 2^2log3(x) * 5^log3(x)=400 4^log3(x) * 5^log3(x)=400 (4*5)^log3(x)=20^2 log3(x)=2 x=9