Algebra Examples

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

Step 1

Simplify each term.

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Step 1.1

Factor out $i^{2}$ .

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

Step 1.2

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

$- 9 (- 1 \cdot i) + i^{2}$

Step 1.3

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

$- 9 (- i) + i^{2}$

Step 1.4

Multiply $- 1$ by $- 9$ .

$9 i + i^{2}$

Step 1.5

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

$9 i - 1$

$9 i - 1$

Step 2

Reorder $9 i$ and $- 1$ .

$- 1 + 9 i$

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