$\"\"$

The differential equation is $\"\"$ .

$\"\"$

Apply integral on each side.

$\"\"$

Consider $\"\"$ .

Apply derivative on each side with respect to $\"\"$ .

$\"\"$

Susbtitute $\"\"$ and $\"\"$ .

$\"\"$

Apply power rule of integral : $\"\"$ .

$\"\"$

Substitute $\"\"$ .

$\"\"$ .

The general solution of differential equation $\"\"$ is $\"\"$ .

$\"\"$

$\"\"$ .