Question

if logax=s nd logay=t , then loga(xy)2 =?

Answer 1

add both equations

logax +logay=s+t                  formula {logx+logy=log(xy)}

loga(xy)=s+t

multiply by 2 on both sides

2loga(xy)=2(s+t)            formula {mlogx =logx^m}

====> loga(xy)2=2(s+t)

Answer 2

$\bf\huge\ Question:-$

if logax=s nd logay=t , then loga(xy)2 =?

$\bf\huge\ Answer:-$

your answer is 2(s+t)