Algebra Examples

$a_{n} = - 5 \cdot {(4)}^{(n - 1)}$

Step 1

Remove parentheses.

$a_{n} = - 5 \cdot 4^{n - 1}$

Step 2

Remove parentheses.

$a_{n} = - 5 \cdot {(4)}^{n - 1}$

Step 3

Remove parentheses.

$a_{n} = - 5 \cdot 4^{n - 1}$

Step 4

To rewrite as a function of $n$ , write the equation so that $a_{n}$ is by itself on one side of the equal sign and an expression involving only $n$ is on the other side.

$f (n) = - 5 \cdot 4^{n - 1}$