1/2log(5)16-3log(5)x+4log(5)y
(1/2)log5 16 - 3log5 x + 4 log5 y and by a property of logs, we have
log5 161/2 - log5 x3 + log5 y4 =
log5 4 - log5 x3 + log5 y4 rearrange as
log5 4 + log5 y4 - log5 x3 and by another log property, we can write
log5 [ ( 4y4 ) / x3 ]