Precalculus Examples

$- 7 - 9 i + (- 8 + 10 i)$

Step 1

Simplify the expression.

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Step 1.1

Remove parentheses.

$- 7 - 9 i - 8 + 10 i$

Step 1.2

Subtract $8$ from $- 7$ .

$- 15 - 9 i + 10 i$

$- 15 - 9 i + 10 i$

Step 2

Add $- 9 i$ and $10 i$ .

$- 15 + i$

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