Precalculus Examples

$7 + 8 i + (4 - 7 i)$

Step 1

Simplify the expression.

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Step 1.1

Remove parentheses.

$7 + 8 i + 4 - 7 i$

Step 1.2

Add $7$ and $4$ .

$11 + 8 i - 7 i$

$11 + 8 i - 7 i$

Step 2

Subtract $7 i$ from $8 i$ .

$11 + i$

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