Question

write as a single logarithm,
ln(xy^2)+5ln(x^2y)-7ln(xyz)

Answer 1

(xy^2)*(x^2y)^5 x^11 y ^7
ln ---------------- = ln ---------
(xyz)^7 x^7y^7z^7

x^4
= ln ----
z^ 7

Answer 2

ln(x^4/z^7)