$\"\"$

\

The integral is $\"\"$ .

\

To complete the square add and subtract $\"\"$ .

\

$\"\"$

\

$\"\"$

\

Compare the integral with $\"\"$ .

\

Where $\"\"$ and $\"\"$ .

\

Integral formula $\"\"$ .

\

$\"\"$

\

$\"\"$ .

\

$\"\"$

\

$\"\"$ .