Precalculus Examples

$(4 - 5 i) + (8 + 2 i)$

Step 1

Simplify the expression.

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Step 1.1

Remove parentheses.

$4 - 5 i + 8 + 2 i$

Step 1.2

Add $4$ and $8$ .

$12 - 5 i + 2 i$

$12 - 5 i + 2 i$

Step 2

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

$12 - 3 i$

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