Algebra Examples

$a_{n} = 2 n - 4$

Step 1

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

$a_{3} = 2 (3) - 4$

Step 2

Multiply $2$ by $3$ .

$a_{3} = 6 - 4$

Step 3

Subtract $4$ from $6$ .

$a_{3} = 2$

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$