$\"\"$

\

The arithmetic sequence with first term $\"\"$ , common difference $\"\"$ .

\

Apply nth term of the arithmetic sequence formula: $\"\"$ .

\

The second term is $\"\"$ .

\

$\"\"$ (Substitute $\"\"$ and $\"\"$ )

\

$\"\"$ (Subtract: $\"\"$ )

\

$\"\"$ (Multiply: $\"\"$ )

\

$\"\"$ (Subtract: $\"\"$ ) $\"\"$

\

The third term is $\"\"$ .

\

$\"\"$ (Substitute $\"\"$ and $\"\"$ )

\

$\"\"$ (Subtract: $\"\"$ )

\

$\"\"$ (Multiply: $\"\"$ )

\

$\"\"$ (Subtract: $\"\"$ ) $\"\"$

\

The fourth term is $\"\"$ .

\

$\"\"$ (Substitute $\"\"$ and $\"\"$ )

\

$\"\"$ (Subtract: $\"\"$ )

\

$\"\"$ (Multiply: $\"\"$ )

\

$\"\"$ (Subtract: $\"\"$ ) $\"\"$

\

The fifth term is $\"\"$ .

\

$\"\"$ (Substitute $\"\"$ and $\"\"$ )

\

$\"\"$ (Subtract: $\"\"$ )

\

$\"\"$ (Multiply: $\"\"$ )

\

$\"\"$ (Subtract: $\"\"$ ) $\"\"$

\

The first five terms of arithmetic sequence are 12, 9, 6, 3, 0.