Question 1028566
{{{log(a,(y^2/(x^2*sqrt(z))))=log(a,(y^2))-log(a,(x^2*sqrt(z)))}}}
{{{log(a,(y^2/(x^2*sqrt(z))))=2*log(a,(y))-log(a,(x^2))-log(a,(sqrt(z)))}}}
{{{log(a,(y^2/(x^2*sqrt(z))))=2*log(a,(y))-2*log(a,(x))-(1/2)*log(a,(z))}}}
Now substitute with values.