Precalculus Examples

$4 - 2 i + (9 + 5 i)$

Step 1

Simplify the expression.

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Step 1.1

Remove parentheses.

$4 - 2 i + 9 + 5 i$

Step 1.2

Add $4$ and $9$ .

$13 - 2 i + 5 i$

$13 - 2 i + 5 i$

Step 2

Add $- 2 i$ and $5 i$ .

$13 + 3 i$

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