Question 471535
{{{log(5x)-(2logx-logy)}}}
Use formula {{{n*log(a)=log(a^n)}}}
{{{log(5x)-(log(x^2)-logy)}}}
Use formula {{{loga-logb=log(a/b)}}}
{{{log(5x)-log((x^2/y))=log((5x/(x^2/y)))=log((5x*(y/x^2)))=log((5y/x))}}}