$\"\"$

The logarithemic expression is $\"\"$ .

Rewrite the above expression as $\"\"$ .

$\"\"$

Quotient property of logarithm : $\"\"$ .

$\"\"$

Power property of logarithm : $\"\"$ .

$\"\"$

Thus, the expression in terms of $\"\"$ and $\"\"$ is $\"\"$ .

$\"\"$

The expression in terms of $\"\"$ and $\"\"$ is $\"\"$ .