Algebra Examples

$a_{3} = \frac{{(- 1)}^{3 + 1}}{2^{3} + 1}$

Simplify the numerator.

Tap for more steps...

Add $3$ and $1$ .

$a_{3} = \frac{{(- 1)}^{4}}{2^{3} + 1}$

Raise $- 1$ to the power of $4$ .

$a_{3} = \frac{1}{2^{3} + 1}$

$a_{3} = \frac{1}{2^{3} + 1}$

Simplify the denominator.

Tap for more steps...

Raise $2$ to the power of $3$ .

$a_{3} = \frac{1}{8 + 1}$

Add $8$ and $1$ .

$a_{3} = \frac{1}{9}$

$a_{3} = \frac{1}{9}$

The result can be shown in multiple forms.

Exact Form:

$a_{3} = \frac{1}{9}$

Decimal Form:

$a_{3} = 0.\overline{1}$

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