Question 940479
Contract the expressions. That is, use the properties of logarithms to write each expression as a single logarithm with a coefficient of 1.
ln 3 − 2 ln 9 + ln 18
{{{ln((3*18)/(9^2))=ln(54/81)=ln(2/3)}}}
..
ln(3 − 2 ln(8 + 7)
{{{ln(3/(15^2))=ln(3/225)=ln(1/75)}}}
..
ln 3 − 2(ln 4 + ln 8)
{{{ln(3)-2(ln4+ln8)=ln(3)-2ln(32)=ln(3/32^2)=ln(3/1024)}}}