Find the First Term a_n=-4n(n-1)

$a_{n} = - 4 n (n - 1)$

Step 1

Substitute in the value of $n$ to find the $n$ th term.

$a_{1} = - 4 \cdot 1 ((1) - 1)$

Step 2

Multiply $- 4$ by $1$ .

$a_{1} = - 4 ((1) - 1)$

Step 3

Subtract $1$ from $1$ .

$a_{1} = - 4 \cdot 0$

Step 4

Multiply $- 4$ by $0$ .

$a_{1} = 0$