Finite Math Examples

$9 i^{2} - 3 i^{3}$

Step 1

Rewrite $i^{2}$ as $- 1$ .

$9 \cdot - 1 - 3 i^{3}$

Step 2

Multiply $9$ by $- 1$ .

$- 9 - 3 i^{3}$

Step 3

Factor out $i^{2}$ .

$- 9 - 3 (i^{2} \cdot i)$

Step 4

Rewrite $i^{2}$ as $- 1$ .

$- 9 - 3 (- 1 \cdot i)$

Step 5

Rewrite $- 1 i$ as $- i$ .

$- 9 - 3 (- i)$

Step 6

Multiply $- 1$ by $- 3$ .

$- 9 + 3 i$

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